balazske updated this revision to Diff 383050.
balazske marked an inline comment as done.
balazske added a comment.
Removed remaining non-alias check line from list.rst.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D112409/new/
https://reviews.llvm.org/D112409
Files:
clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp
clang-tools-extra/docs/ReleaseNotes.rst
clang-tools-extra/docs/clang-tidy/checks/bugprone-unused-return-value.rst
clang-tools-extra/docs/clang-tidy/checks/cert-err33-c.rst
clang-tools-extra/docs/clang-tidy/checks/list.rst
clang-tools-extra/test/clang-tidy/checkers/cert-err33-c.c
Index: clang-tools-extra/test/clang-tidy/checkers/cert-err33-c.c
===================================================================
--- /dev/null
+++ clang-tools-extra/test/clang-tidy/checkers/cert-err33-c.c
@@ -0,0 +1,1243 @@
+// RUN: %check_clang_tidy %s cert-err33-c %t
+
+// Check for every function in the list.
+// Arguments of these are not correct here, the checker does not check arguments.
+
+int aligned_alloc();
+void test_aligned_alloc() {
+ aligned_alloc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int asctime_s();
+void test_asctime_s() {
+ asctime_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int at_quick_exit();
+void test_at_quick_exit() {
+ at_quick_exit();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int atexit();
+void test_atexit() {
+ atexit();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int bsearch();
+void test_bsearch() {
+ bsearch();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int bsearch_s();
+void test_bsearch_s() {
+ bsearch_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int btowc();
+void test_btowc() {
+ btowc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int c16rtomb();
+void test_c16rtomb() {
+ c16rtomb();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int c32rtomb();
+void test_c32rtomb() {
+ c32rtomb();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int calloc();
+void test_calloc() {
+ calloc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int clock();
+void test_clock() {
+ clock();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int cnd_broadcast();
+void test_cnd_broadcast() {
+ cnd_broadcast();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int cnd_init();
+void test_cnd_init() {
+ cnd_init();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int cnd_signal();
+void test_cnd_signal() {
+ cnd_signal();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int cnd_timedwait();
+void test_cnd_timedwait() {
+ cnd_timedwait();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int cnd_wait();
+void test_cnd_wait() {
+ cnd_wait();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int ctime_s();
+void test_ctime_s() {
+ ctime_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fclose();
+void test_fclose() {
+ fclose();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fflush();
+void test_fflush() {
+ fflush();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fgetc();
+void test_fgetc() {
+ fgetc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fgetpos();
+void test_fgetpos() {
+ fgetpos();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fgets();
+void test_fgets() {
+ fgets();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fgetwc();
+void test_fgetwc() {
+ fgetwc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fopen();
+void test_fopen() {
+ fopen();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fopen_s();
+void test_fopen_s() {
+ fopen_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fprintf();
+void test_fprintf() {
+ fprintf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fprintf_s();
+void test_fprintf_s() {
+ fprintf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fputc();
+void test_fputc() {
+ fputc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fputs();
+void test_fputs() {
+ fputs();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fputwc();
+void test_fputwc() {
+ fputwc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fputws();
+void test_fputws() {
+ fputws();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fread();
+void test_fread() {
+ fread();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int freopen();
+void test_freopen() {
+ freopen();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int freopen_s();
+void test_freopen_s() {
+ freopen_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fscanf();
+void test_fscanf() {
+ fscanf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fscanf_s();
+void test_fscanf_s() {
+ fscanf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fseek();
+void test_fseek() {
+ fseek();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fsetpos();
+void test_fsetpos() {
+ fsetpos();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int ftell();
+void test_ftell() {
+ ftell();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fwprintf();
+void test_fwprintf() {
+ fwprintf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fwprintf_s();
+void test_fwprintf_s() {
+ fwprintf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fwrite();
+void test_fwrite() {
+ fwrite();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fwscanf();
+void test_fwscanf() {
+ fwscanf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int fwscanf_s();
+void test_fwscanf_s() {
+ fwscanf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int getc();
+void test_getc() {
+ getc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int getchar();
+void test_getchar() {
+ getchar();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int getenv();
+void test_getenv() {
+ getenv();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int getenv_s();
+void test_getenv_s() {
+ getenv_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int gets_s();
+void test_gets_s() {
+ gets_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int getwc();
+void test_getwc() {
+ getwc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int getwchar();
+void test_getwchar() {
+ getwchar();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int gmtime();
+void test_gmtime() {
+ gmtime();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int gmtime_s();
+void test_gmtime_s() {
+ gmtime_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int localtime();
+void test_localtime() {
+ localtime();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int localtime_s();
+void test_localtime_s() {
+ localtime_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int malloc();
+void test_malloc() {
+ malloc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int mbrtoc16();
+void test_mbrtoc16() {
+ mbrtoc16();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int mbrtoc32();
+void test_mbrtoc32() {
+ mbrtoc32();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int mbsrtowcs();
+void test_mbsrtowcs() {
+ mbsrtowcs();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int mbsrtowcs_s();
+void test_mbsrtowcs_s() {
+ mbsrtowcs_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int mbstowcs();
+void test_mbstowcs() {
+ mbstowcs();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int mbstowcs_s();
+void test_mbstowcs_s() {
+ mbstowcs_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int memchr();
+void test_memchr() {
+ memchr();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int mktime();
+void test_mktime() {
+ mktime();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int mtx_init();
+void test_mtx_init() {
+ mtx_init();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int mtx_lock();
+void test_mtx_lock() {
+ mtx_lock();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int mtx_timedlock();
+void test_mtx_timedlock() {
+ mtx_timedlock();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int mtx_trylock();
+void test_mtx_trylock() {
+ mtx_trylock();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int mtx_unlock();
+void test_mtx_unlock() {
+ mtx_unlock();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int printf_s();
+void test_printf_s() {
+ printf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int putc();
+void test_putc() {
+ putc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int putwc();
+void test_putwc() {
+ putwc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int raise();
+void test_raise() {
+ raise();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int realloc();
+void test_realloc() {
+ realloc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int remove();
+void test_remove() {
+ remove();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int rename();
+void test_rename() {
+ rename();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int scanf();
+void test_scanf() {
+ scanf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int scanf_s();
+void test_scanf_s() {
+ scanf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int setlocale();
+void test_setlocale() {
+ setlocale();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int setvbuf();
+void test_setvbuf() {
+ setvbuf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int signal();
+void test_signal() {
+ signal();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int snprintf();
+void test_snprintf() {
+ snprintf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int snprintf_s();
+void test_snprintf_s() {
+ snprintf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int sprintf();
+void test_sprintf() {
+ sprintf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int sprintf_s();
+void test_sprintf_s() {
+ sprintf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int sscanf();
+void test_sscanf() {
+ sscanf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int sscanf_s();
+void test_sscanf_s() {
+ sscanf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strchr();
+void test_strchr() {
+ strchr();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strerror_s();
+void test_strerror_s() {
+ strerror_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strftime();
+void test_strftime() {
+ strftime();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strpbrk();
+void test_strpbrk() {
+ strpbrk();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strrchr();
+void test_strrchr() {
+ strrchr();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strstr();
+void test_strstr() {
+ strstr();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strtod();
+void test_strtod() {
+ strtod();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strtof();
+void test_strtof() {
+ strtof();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strtoimax();
+void test_strtoimax() {
+ strtoimax();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strtok();
+void test_strtok() {
+ strtok();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strtok_s();
+void test_strtok_s() {
+ strtok_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strtol();
+void test_strtol() {
+ strtol();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strtold();
+void test_strtold() {
+ strtold();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strtoll();
+void test_strtoll() {
+ strtoll();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strtoul();
+void test_strtoul() {
+ strtoul();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strtoull();
+void test_strtoull() {
+ strtoull();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strtoumax();
+void test_strtoumax() {
+ strtoumax();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int strxfrm();
+void test_strxfrm() {
+ strxfrm();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int swprintf();
+void test_swprintf() {
+ swprintf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int swprintf_s();
+void test_swprintf_s() {
+ swprintf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int swscanf();
+void test_swscanf() {
+ swscanf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int swscanf_s();
+void test_swscanf_s() {
+ swscanf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int thrd_create();
+void test_thrd_create() {
+ thrd_create();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int thrd_detach();
+void test_thrd_detach() {
+ thrd_detach();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int thrd_join();
+void test_thrd_join() {
+ thrd_join();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int thrd_sleep();
+void test_thrd_sleep() {
+ thrd_sleep();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int time();
+void test_time() {
+ time();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int timespec_get();
+void test_timespec_get() {
+ timespec_get();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int tmpfile();
+void test_tmpfile() {
+ tmpfile();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int tmpfile_s();
+void test_tmpfile_s() {
+ tmpfile_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int tmpnam();
+void test_tmpnam() {
+ tmpnam();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int tmpnam_s();
+void test_tmpnam_s() {
+ tmpnam_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int tss_create();
+void test_tss_create() {
+ tss_create();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int tss_get();
+void test_tss_get() {
+ tss_get();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int tss_set();
+void test_tss_set() {
+ tss_set();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int ungetc();
+void test_ungetc() {
+ ungetc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int ungetwc();
+void test_ungetwc() {
+ ungetwc();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vfprintf();
+void test_vfprintf() {
+ vfprintf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vfprintf_s();
+void test_vfprintf_s() {
+ vfprintf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vfscanf(int, int);
+void test_vfscanf() {
+ vfscanf(0, 0);
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vfscanf_s();
+void test_vfscanf_s() {
+ vfscanf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vfwprintf();
+void test_vfwprintf() {
+ vfwprintf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vfwprintf_s();
+void test_vfwprintf_s() {
+ vfwprintf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vfwscanf();
+void test_vfwscanf() {
+ vfwscanf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vfwscanf_s();
+void test_vfwscanf_s() {
+ vfwscanf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vprintf_s();
+void test_vprintf_s() {
+ vprintf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vscanf(int, int);
+void test_vscanf() {
+ vscanf(0, 0);
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vscanf_s();
+void test_vscanf_s() {
+ vscanf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vsnprintf(int, int, int, int);
+void test_vsnprintf() {
+ vsnprintf(0, 0, 0, 0);
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vsnprintf_s();
+void test_vsnprintf_s() {
+ vsnprintf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vsprintf(int, int, int);
+void test_vsprintf() {
+ vsprintf(0, 0, 0);
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vsprintf_s(int, int, int);
+void test_vsprintf_s() {
+ vsprintf_s(0, 0, 0);
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vsscanf(int, int, int);
+void test_vsscanf() {
+ vsscanf(0, 0, 0);
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vsscanf_s();
+void test_vsscanf_s() {
+ vsscanf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vswprintf();
+void test_vswprintf() {
+ vswprintf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vswprintf_s();
+void test_vswprintf_s() {
+ vswprintf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vswscanf();
+void test_vswscanf() {
+ vswscanf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vswscanf_s();
+void test_vswscanf_s() {
+ vswscanf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vwprintf_s();
+void test_vwprintf_s() {
+ vwprintf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vwscanf();
+void test_vwscanf() {
+ vwscanf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int vwscanf_s();
+void test_vwscanf_s() {
+ vwscanf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcrtomb();
+void test_wcrtomb() {
+ wcrtomb();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcschr();
+void test_wcschr() {
+ wcschr();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcsftime();
+void test_wcsftime() {
+ wcsftime();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcspbrk();
+void test_wcspbrk() {
+ wcspbrk();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcsrchr();
+void test_wcsrchr() {
+ wcsrchr();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcsrtombs();
+void test_wcsrtombs() {
+ wcsrtombs();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcsrtombs_s();
+void test_wcsrtombs_s() {
+ wcsrtombs_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcsstr();
+void test_wcsstr() {
+ wcsstr();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcstod();
+void test_wcstod() {
+ wcstod();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcstof();
+void test_wcstof() {
+ wcstof();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcstoimax();
+void test_wcstoimax() {
+ wcstoimax();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcstok();
+void test_wcstok() {
+ wcstok();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcstok_s();
+void test_wcstok_s() {
+ wcstok_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcstol();
+void test_wcstol() {
+ wcstol();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcstold();
+void test_wcstold() {
+ wcstold();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcstoll();
+void test_wcstoll() {
+ wcstoll();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcstombs();
+void test_wcstombs() {
+ wcstombs();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcstombs_s();
+void test_wcstombs_s() {
+ wcstombs_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcstoul();
+void test_wcstoul() {
+ wcstoul();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcstoull();
+void test_wcstoull() {
+ wcstoull();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcstoumax();
+void test_wcstoumax() {
+ wcstoumax();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wcsxfrm();
+void test_wcsxfrm() {
+ wcsxfrm();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wctob();
+void test_wctob() {
+ wctob();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wctrans();
+void test_wctrans() {
+ wctrans();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wctype();
+void test_wctype() {
+ wctype();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wmemchr();
+void test_wmemchr() {
+ wmemchr();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wprintf_s();
+void test_wprintf_s() {
+ wprintf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wscanf();
+void test_wscanf() {
+ wscanf();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
+
+int wscanf_s();
+void test_wscanf_s() {
+ wscanf_s();
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: the value returned by this function should be used
+ // CHECK-NOTES: [[@LINE-2]]:3: note: cast the expression to void to silence this warning
+}
Index: clang-tools-extra/docs/clang-tidy/checks/list.rst
===================================================================
--- clang-tools-extra/docs/clang-tidy/checks/list.rst
+++ clang-tools-extra/docs/clang-tidy/checks/list.rst
@@ -333,6 +333,7 @@
`cert-dcl03-c <cert-dcl03-c.html>`_, `misc-static-assert <misc-static-assert.html>`_, "Yes"
`cert-dcl16-c <cert-dcl16-c.html>`_, `readability-uppercase-literal-suffix <readability-uppercase-literal-suffix.html>`_, "Yes"
`cert-dcl37-c <cert-dcl37-c.html>`_, `bugprone-reserved-identifier <bugprone-reserved-identifier.html>`_, "Yes"
+ `cert-err33-c <cert-err33-c.html>`_, `bugprone-unused-return-value <bugprone-unused-return-value.html>`_,
`cert-dcl51-cpp <cert-dcl51-cpp.html>`_, `bugprone-reserved-identifier <bugprone-reserved-identifier.html>`_, "Yes"
`cert-dcl54-cpp <cert-dcl54-cpp.html>`_, `misc-new-delete-overloads <misc-new-delete-overloads.html>`_,
`cert-dcl59-cpp <cert-dcl59-cpp.html>`_, `google-build-namespaces <google-build-namespaces.html>`_,
Index: clang-tools-extra/docs/clang-tidy/checks/cert-err33-c.rst
===================================================================
--- /dev/null
+++ clang-tools-extra/docs/clang-tidy/checks/cert-err33-c.rst
@@ -0,0 +1,199 @@
+.. title:: clang-tidy - cert-err33-c
+
+cert-err33-c
+============
+
+Warns on unused function return values. Many of the standard library functions
+return a value that indicates if the call was successful. Ignoring the returned
+value can cause unexpected behavior if an error has occured. The following
+functions are checked:
+
+* aligned_alloc()
+* asctime_s()
+* at_quick_exit()
+* atexit()
+* bsearch()
+* bsearch_s()
+* btowc()
+* c16rtomb()
+* c32rtomb()
+* calloc()
+* clock()
+* cnd_broadcast()
+* cnd_init()
+* cnd_signal()
+* cnd_timedwait()
+* cnd_wait()
+* ctime_s()
+* fclose()
+* fflush()
+* fgetc()
+* fgetpos()
+* fgets()
+* fgetwc()
+* fopen()
+* fopen_s()
+* fprintf()
+* fprintf_s()
+* fputc()
+* fputs()
+* fputwc()
+* fputws()
+* fread()
+* freopen()
+* freopen_s()
+* fscanf()
+* fscanf_s()
+* fseek()
+* fsetpos()
+* ftell()
+* fwprintf()
+* fwprintf_s()
+* fwrite()
+* fwscanf()
+* fwscanf_s()
+* getc()
+* getchar()
+* getenv()
+* getenv_s()
+* gets_s()
+* getwc()
+* getwchar()
+* gmtime()
+* gmtime_s()
+* localtime()
+* localtime_s()
+* malloc()
+* mbrtoc16()
+* mbrtoc32()
+* mbsrtowcs()
+* mbsrtowcs_s()
+* mbstowcs()
+* mbstowcs_s()
+* memchr()
+* mktime()
+* mtx_init()
+* mtx_lock()
+* mtx_timedlock()
+* mtx_trylock()
+* mtx_unlock()
+* printf_s()
+* putc()
+* putwc()
+* raise()
+* realloc()
+* remove()
+* rename()
+* setlocale()
+* setvbuf()
+* scanf()
+* scanf_s()
+* signal()
+* snprintf()
+* snprintf_s()
+* sprintf()
+* sprintf_s()
+* sscanf()
+* sscanf_s()
+* strchr()
+* strerror_s()
+* strftime()
+* strpbrk()
+* strrchr()
+* strstr()
+* strtod()
+* strtof()
+* strtoimax()
+* strtok()
+* strtok_s()
+* strtol()
+* strtold()
+* strtoll()
+* strtoumax()
+* strtoul()
+* strtoull()
+* strxfrm()
+* swprintf()
+* swprintf_s()
+* swscanf()
+* swscanf_s()
+* thrd_create()
+* thrd_detach()
+* thrd_join()
+* thrd_sleep()
+* time()
+* timespec_get()
+* tmpfile()
+* tmpfile_s()
+* tmpnam()
+* tmpnam_s()
+* tss_create()
+* tss_get()
+* tss_set()
+* ungetc()
+* ungetwc()
+* vfprintf()
+* vfprintf_s()
+* vfscanf()
+* vfscanf_s()
+* vfwprintf()
+* vfwprintf_s()
+* vfwscanf()
+* vfwscanf_s()
+* vprintf_s()
+* vscanf()
+* vscanf_s()
+* vsnprintf()
+* vsnprintf_s()
+* vsprintf()
+* vsprintf_s()
+* vsscanf()
+* vsscanf_s()
+* vswprintf()
+* vswprintf_s()
+* vswscanf()
+* vswscanf_s()
+* vwprintf_s()
+* vwscanf()
+* vwscanf_s()
+* wcrtomb()
+* wcschr()
+* wcsftime()
+* wcspbrk()
+* wcsrchr()
+* wcsrtombs()
+* wcsrtombs_s()
+* wcsstr()
+* wcstod()
+* wcstof()
+* wcstoimax()
+* wcstok()
+* wcstok_s()
+* wcstol()
+* wcstold()
+* wcstoll()
+* wcstombs()
+* wcstombs_s()
+* wcstoumax()
+* wcstoul()
+* wcstoull()
+* wcsxfrm()
+* wctob()
+* wctrans()
+* wctype()
+* wmemchr()
+* wprintf_s()
+* wscanf()
+* wscanf_s()
+
+This check is an alias of check `bugprone-unused-return-value <bugprone-unused-return-value.html>`_
+with a fixed set of functions.
+
+The check corresponds to a part of CERT C Coding Standard rule `ERR33-C.
+Detect and handle standard library errors
+<https://wiki.sei.cmu.edu/confluence/display/c/ERR33-C.+Detect+and+handle+standard+library+errors>`_.
+The list of checked functions is taken from the rule, with following exception:
+
+* The check can not differentiate if a function is called with ``NULL``
+ argument. Therefore the following functions are not checked:
+ ``mblen``, ``mbrlen``, ``mbrtowc``, ``mbtowc``, ``wctomb``, ``wctomb_s``
Index: clang-tools-extra/docs/clang-tidy/checks/bugprone-unused-return-value.rst
===================================================================
--- clang-tools-extra/docs/clang-tidy/checks/bugprone-unused-return-value.rst
+++ clang-tools-extra/docs/clang-tidy/checks/bugprone-unused-return-value.rst
@@ -45,3 +45,6 @@
- ``std::basic_string::empty()`` and ``std::vector::empty()``. Not using the
return value often indicates that the programmer confused the function with
``clear()``.
+
+`cert-err33-c <cert-err33-c.html>`_ is an alias of this check that checks a
+fixed and large set of standard library functions.
Index: clang-tools-extra/docs/ReleaseNotes.rst
===================================================================
--- clang-tools-extra/docs/ReleaseNotes.rst
+++ clang-tools-extra/docs/ReleaseNotes.rst
@@ -103,6 +103,11 @@
New check aliases
^^^^^^^^^^^^^^^^^
+- New alias :doc:`cert-err33-c
+ <clang-tidy/checks/cert-err33-c>` to
+ :doc:`bugprone-unused-return-value
+ <clang-tidy/checks/bugprone-unused-return-value>` was added.
+
- New alias :doc:`cert-exp42-c
<clang-tidy/checks/cert-exp42-c>` to
:doc:`bugprone-suspicious-memory-comparison
Index: clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp
===================================================================
--- clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp
+++ clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp
@@ -16,6 +16,7 @@
#include "../bugprone/SpuriouslyWakeUpFunctionsCheck.h"
#include "../bugprone/SuspiciousMemoryComparisonCheck.h"
#include "../bugprone/UnhandledSelfAssignmentCheck.h"
+#include "../bugprone/UnusedReturnValueCheck.h"
#include "../concurrency/ThreadCanceltypeAsynchronousCheck.h"
#include "../google/UnnamedNamespaceInHeaderCheck.h"
#include "../misc/NewDeleteOverloadsCheck.h"
@@ -39,6 +40,193 @@
#include "ThrownExceptionTypeCheck.h"
#include "VariadicFunctionDefCheck.h"
+namespace {
+
+// Checked functions for cert-err33-c.
+// The following functions are deliberately excluded because they can be called
+// with NULL argument and in this case the check is not applicable:
+// `mblen, mbrlen, mbrtowc, mbtowc, wctomb, wctomb_s`.
+// FIXME: The check can be improved to handle such cases.
+const llvm::StringRef CertErr33CCheckedFunctions = "::aligned_alloc;"
+ "::asctime_s;"
+ "::at_quick_exit;"
+ "::atexit;"
+ "::bsearch;"
+ "::bsearch_s;"
+ "::btowc;"
+ "::c16rtomb;"
+ "::c32rtomb;"
+ "::calloc;"
+ "::clock;"
+ "::cnd_broadcast;"
+ "::cnd_init;"
+ "::cnd_signal;"
+ "::cnd_timedwait;"
+ "::cnd_wait;"
+ "::ctime_s;"
+ "::fclose;"
+ "::fflush;"
+ "::fgetc;"
+ "::fgetpos;"
+ "::fgets;"
+ "::fgetwc;"
+ "::fopen;"
+ "::fopen_s;"
+ "::fprintf;"
+ "::fprintf_s;"
+ "::fputc;"
+ "::fputs;"
+ "::fputwc;"
+ "::fputws;"
+ "::fread;"
+ "::freopen;"
+ "::freopen_s;"
+ "::fscanf;"
+ "::fscanf_s;"
+ "::fseek;"
+ "::fsetpos;"
+ "::ftell;"
+ "::fwprintf;"
+ "::fwprintf_s;"
+ "::fwrite;"
+ "::fwscanf;"
+ "::fwscanf_s;"
+ "::getc;"
+ "::getchar;"
+ "::getenv;"
+ "::getenv_s;"
+ "::gets_s;"
+ "::getwc;"
+ "::getwchar;"
+ "::gmtime;"
+ "::gmtime_s;"
+ "::localtime;"
+ "::localtime_s;"
+ "::malloc;"
+ "::mbrtoc16;"
+ "::mbrtoc32;"
+ "::mbsrtowcs;"
+ "::mbsrtowcs_s;"
+ "::mbstowcs;"
+ "::mbstowcs_s;"
+ "::memchr;"
+ "::mktime;"
+ "::mtx_init;"
+ "::mtx_lock;"
+ "::mtx_timedlock;"
+ "::mtx_trylock;"
+ "::mtx_unlock;"
+ "::printf_s;"
+ "::putc;"
+ "::putwc;"
+ "::raise;"
+ "::realloc;"
+ "::remove;"
+ "::rename;"
+ "::scanf;"
+ "::scanf_s;"
+ "::setlocale;"
+ "::setvbuf;"
+ "::signal;"
+ "::snprintf;"
+ "::snprintf_s;"
+ "::sprintf;"
+ "::sprintf_s;"
+ "::sscanf;"
+ "::sscanf_s;"
+ "::strchr;"
+ "::strerror_s;"
+ "::strftime;"
+ "::strpbrk;"
+ "::strrchr;"
+ "::strstr;"
+ "::strtod;"
+ "::strtof;"
+ "::strtoimax;"
+ "::strtok;"
+ "::strtok_s;"
+ "::strtol;"
+ "::strtold;"
+ "::strtoll;"
+ "::strtoul;"
+ "::strtoull;"
+ "::strtoumax;"
+ "::strxfrm;"
+ "::swprintf;"
+ "::swprintf_s;"
+ "::swscanf;"
+ "::swscanf_s;"
+ "::thrd_create;"
+ "::thrd_detach;"
+ "::thrd_join;"
+ "::thrd_sleep;"
+ "::time;"
+ "::timespec_get;"
+ "::tmpfile;"
+ "::tmpfile_s;"
+ "::tmpnam;"
+ "::tmpnam_s;"
+ "::tss_create;"
+ "::tss_get;"
+ "::tss_set;"
+ "::ungetc;"
+ "::ungetwc;"
+ "::vfprintf;"
+ "::vfprintf_s;"
+ "::vfscanf;"
+ "::vfscanf_s;"
+ "::vfwprintf;"
+ "::vfwprintf_s;"
+ "::vfwscanf;"
+ "::vfwscanf_s;"
+ "::vprintf_s;"
+ "::vscanf;"
+ "::vscanf_s;"
+ "::vsnprintf;"
+ "::vsnprintf_s;"
+ "::vsprintf;"
+ "::vsprintf_s;"
+ "::vsscanf;"
+ "::vsscanf_s;"
+ "::vswprintf;"
+ "::vswprintf_s;"
+ "::vswscanf;"
+ "::vswscanf_s;"
+ "::vwprintf_s;"
+ "::vwscanf;"
+ "::vwscanf_s;"
+ "::wcrtomb;"
+ "::wcschr;"
+ "::wcsftime;"
+ "::wcspbrk;"
+ "::wcsrchr;"
+ "::wcsrtombs;"
+ "::wcsrtombs_s;"
+ "::wcsstr;"
+ "::wcstod;"
+ "::wcstof;"
+ "::wcstoimax;"
+ "::wcstok;"
+ "::wcstok_s;"
+ "::wcstol;"
+ "::wcstold;"
+ "::wcstoll;"
+ "::wcstombs;"
+ "::wcstombs_s;"
+ "::wcstoul;"
+ "::wcstoull;"
+ "::wcstoumax;"
+ "::wcsxfrm;"
+ "::wctob;"
+ "::wctrans;"
+ "::wctype;"
+ "::wmemchr;"
+ "::wprintf_s;"
+ "::wscanf;"
+ "::wscanf_s;";
+
+} // namespace
+
namespace clang {
namespace tidy {
namespace cert {
@@ -99,6 +287,10 @@
"cert-dcl37-c");
// ENV
CheckFactories.registerCheck<CommandProcessorCheck>("cert-env33-c");
+ // ERR
+ CheckFactories.registerCheck<bugprone::UnusedReturnValueCheck>(
+ "cert-err33-c");
+ CheckFactories.registerCheck<StrToNumCheck>("cert-err34-c");
// EXP
CheckFactories.registerCheck<bugprone::SuspiciousMemoryComparisonCheck>(
"cert-exp42-c");
@@ -108,8 +300,6 @@
"cert-flp37-c");
// FIO
CheckFactories.registerCheck<misc::NonCopyableObjectsCheck>("cert-fio38-c");
- // ERR
- CheckFactories.registerCheck<StrToNumCheck>("cert-err34-c");
// MSC
CheckFactories.registerCheck<LimitedRandomnessCheck>("cert-msc30-c");
CheckFactories.registerCheck<ProperlySeededRandomGeneratorCheck>(
@@ -131,6 +321,7 @@
ClangTidyOptions Options;
ClangTidyOptions::OptionMap &Opts = Options.CheckOptions;
Opts["cert-dcl16-c.NewSuffixes"] = "L;LL;LU;LLU";
+ Opts["cert-err33-c.CheckedFunctions"] = CertErr33CCheckedFunctions;
Opts["cert-oop54-cpp.WarnOnlyIfThisHasSuspiciousField"] = "false";
Opts["cert-str34-c.DiagnoseSignedUnsignedCharComparisons"] = "false";
return Options;
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