I wrote i simple code snippet to demonstrate problem: #include <string.h> #include <stdlib.h> #include <stdio.h> void f(const char* str1, const char* str2) { const char* fmt = "Something is: %s, and something another is: %s\n"; const size_t buff_len = strlen(fmt) + strlen(str1) + strlen(str2) + 1; char* buff = (char*)malloc(buff_len); sprintf(buff, fmt, "Str1", "str2"); /* Do something with buff */ free(buff);
} int main() { return EXIT_SUCCESS; } I compile it this way: [EMAIL PROTECTED]:/tmp$ LANG=C gcc test.c -Wall -Wformat=2 test.c: In function 'f': test.c:9: warning: format not a string literal, argument types not checked I think, that in this case, warning is not correct, format is string literal, and is not gotten in function parameters(as i saw in previous bug reports for this warning), so compiler really can check argument types. Please, resolve this problem. My gcc -v output: Using built-in specs. Target: i486-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 4.3.2-1' --with-bugurl=file:///usr/share/doc/gcc-4.3/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.3 --program-suffix=-4.3 --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --enable-mpfr --enable-targets=all --enable-cld --enable-checking=release --build=i486-linux-gnu --host=i486-linux-gnu --target=i486-linux-gnu Thread model: posix gcc version 4.3.2 (Debian 4.3.2-1) System: Debian lenny test.i: # 1 "test.c" # 1 "<built-in>" # 1 "<command-line>" # 1 "test.c" # 1 "/usr/include/string.h" 1 3 4 # 26 "/usr/include/string.h" 3 4 # 1 "/usr/include/features.h" 1 3 4 # 330 "/usr/include/features.h" 3 4 # 1 "/usr/include/sys/cdefs.h" 1 3 4 # 348 "/usr/include/sys/cdefs.h" 3 4 # 1 "/usr/include/bits/wordsize.h" 1 3 4 # 349 "/usr/include/sys/cdefs.h" 2 3 4 # 331 "/usr/include/features.h" 2 3 4 # 354 "/usr/include/features.h" 3 4 # 1 "/usr/include/gnu/stubs.h" 1 3 4 # 1 "/usr/include/bits/wordsize.h" 1 3 4 # 5 "/usr/include/gnu/stubs.h" 2 3 4 # 1 "/usr/include/gnu/stubs-32.h" 1 3 4 # 8 "/usr/include/gnu/stubs.h" 2 3 4 # 355 "/usr/include/features.h" 2 3 4 # 27 "/usr/include/string.h" 2 3 4 # 1 "/usr/lib/gcc/i486-linux-gnu/4.3.2/include/stddef.h" 1 3 4 # 214 "/usr/lib/gcc/i486-linux-gnu/4.3.2/include/stddef.h" 3 4 typedef unsigned int size_t; # 34 "/usr/include/string.h" 2 3 4 extern void *memcpy (void *__restrict __dest, __const void *__restrict __src, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern void *memmove (void *__dest, __const void *__src, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern void *memccpy (void *__restrict __dest, __const void *__restrict __src, int __c, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern void *memset (void *__s, int __c, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))); extern int memcmp (__const void *__s1, __const void *__s2, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2))); extern void *memchr (__const void *__s, int __c, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))); # 82 "/usr/include/string.h" 3 4 extern char *strcpy (char *__restrict __dest, __const char *__restrict __src) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern char *strncpy (char *__restrict __dest, __const char *__restrict __src, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern char *strcat (char *__restrict __dest, __const char *__restrict __src) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern char *strncat (char *__restrict __dest, __const char *__restrict __src, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern int strcmp (__const char *__s1, __const char *__s2) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2))); extern int strncmp (__const char *__s1, __const char *__s2, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2))); extern int strcoll (__const char *__s1, __const char *__s2) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2))); extern size_t strxfrm (char *__restrict __dest, __const char *__restrict __src, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2))); # 130 "/usr/include/string.h" 3 4 extern char *strdup (__const char *__s) __attribute__ ((__nothrow__)) __attribute__ ((__malloc__)) __attribute__ ((__nonnull__ (1))); # 165 "/usr/include/string.h" 3 4 extern char *strchr (__const char *__s, int __c) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))); extern char *strrchr (__const char *__s, int __c) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))); # 181 "/usr/include/string.h" 3 4 extern size_t strcspn (__const char *__s, __const char *__reject) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2))); extern size_t strspn (__const char *__s, __const char *__accept) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2))); extern char *strpbrk (__const char *__s, __const char *__accept) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2))); extern char *strstr (__const char *__haystack, __const char *__needle) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2))); extern char *strtok (char *__restrict __s, __const char *__restrict __delim) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2))); extern char *__strtok_r (char *__restrict __s, __const char *__restrict __delim, char **__restrict __save_ptr) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2, 3))); extern char *strtok_r (char *__restrict __s, __const char *__restrict __delim, char **__restrict __save_ptr) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2, 3))); # 240 "/usr/include/string.h" 3 4 extern size_t strlen (__const char *__s) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))); # 254 "/usr/include/string.h" 3 4 extern char *strerror (int __errnum) __attribute__ ((__nothrow__)); # 270 "/usr/include/string.h" 3 4 extern int strerror_r (int __errnum, char *__buf, size_t __buflen) __asm__ ("" "__xpg_strerror_r") __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2))); # 294 "/usr/include/string.h" 3 4 extern void __bzero (void *__s, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))); extern void bcopy (__const void *__src, void *__dest, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern void bzero (void *__s, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))); extern int bcmp (__const void *__s1, __const void *__s2, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2))); extern char *index (__const char *__s, int __c) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))); extern char *rindex (__const char *__s, int __c) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))); extern int ffs (int __i) __attribute__ ((__nothrow__)) __attribute__ ((__const__)); # 331 "/usr/include/string.h" 3 4 extern int strcasecmp (__const char *__s1, __const char *__s2) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2))); extern int strncasecmp (__const char *__s1, __const char *__s2, size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2))); # 354 "/usr/include/string.h" 3 4 extern char *strsep (char **__restrict __stringp, __const char *__restrict __delim) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); # 432 "/usr/include/string.h" 3 4 # 2 "test.c" 2 # 1 "/usr/include/stdlib.h" 1 3 4 # 33 "/usr/include/stdlib.h" 3 4 # 1 "/usr/lib/gcc/i486-linux-gnu/4.3.2/include/stddef.h" 1 3 4 # 326 "/usr/lib/gcc/i486-linux-gnu/4.3.2/include/stddef.h" 3 4 typedef int wchar_t; # 34 "/usr/include/stdlib.h" 2 3 4 # 96 "/usr/include/stdlib.h" 3 4 typedef struct { int quot; int rem; } div_t; typedef struct { long int quot; long int rem; } ldiv_t; # 140 "/usr/include/stdlib.h" 3 4 extern size_t __ctype_get_mb_cur_max (void) __attribute__ ((__nothrow__)) ; extern double atof (__const char *__nptr) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) ; extern int atoi (__const char *__nptr) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) ; extern long int atol (__const char *__nptr) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) ; __extension__ extern long long int atoll (__const char *__nptr) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) ; extern double strtod (__const char *__restrict __nptr, char **__restrict __endptr) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))) ; # 182 "/usr/include/stdlib.h" 3 4 extern long int strtol (__const char *__restrict __nptr, char **__restrict __endptr, int __base) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))) ; extern unsigned long int strtoul (__const char *__restrict __nptr, char **__restrict __endptr, int __base) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))) ; __extension__ extern long long int strtoq (__const char *__restrict __nptr, char **__restrict __endptr, int __base) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))) ; __extension__ extern unsigned long long int strtouq (__const char *__restrict __nptr, char **__restrict __endptr, int __base) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))) ; __extension__ extern long long int strtoll (__const char *__restrict __nptr, char **__restrict __endptr, int __base) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))) ; __extension__ extern unsigned long long int strtoull (__const char *__restrict __nptr, char **__restrict __endptr, int __base) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))) ; # 311 "/usr/include/stdlib.h" 3 4 extern char *l64a (long int __n) __attribute__ ((__nothrow__)) ; extern long int a64l (__const char *__s) __attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) ; # 1 "/usr/include/sys/types.h" 1 3 4 # 29 "/usr/include/sys/types.h" 3 4 # 1 "/usr/include/bits/types.h" 1 3 4 # 28 "/usr/include/bits/types.h" 3 4 # 1 "/usr/include/bits/wordsize.h" 1 3 4 # 29 "/usr/include/bits/types.h" 2 3 4 typedef unsigned char __u_char; typedef unsigned short int __u_short; typedef unsigned int __u_int; typedef unsigned long int __u_long; typedef signed char __int8_t; typedef unsigned char __uint8_t; typedef signed short int __int16_t; typedef unsigned short int __uint16_t; typedef signed int __int32_t; typedef unsigned int __uint32_t; __extension__ typedef signed long long int __int64_t; __extension__ typedef unsigned long long int __uint64_t; __extension__ typedef long long int __quad_t; __extension__ typedef unsigned long long int __u_quad_t; # 131 "/usr/include/bits/types.h" 3 4 # 1 "/usr/include/bits/typesizes.h" 1 3 4 # 132 "/usr/include/bits/types.h" 2 3 4 __extension__ typedef __u_quad_t __dev_t; __extension__ typedef unsigned int __uid_t; __extension__ typedef unsigned int __gid_t; __extension__ typedef unsigned long int __ino_t; __extension__ typedef __u_quad_t __ino64_t; __extension__ typedef unsigned int __mode_t; __extension__ typedef unsigned int __nlink_t; __extension__ typedef long int __off_t; __extension__ typedef __quad_t __off64_t; __extension__ typedef int __pid_t; __extension__ typedef struct { int __val[2]; } __fsid_t; __extension__ typedef long int __clock_t; __extension__ typedef unsigned long int __rlim_t; __extension__ typedef __u_quad_t __rlim64_t; __extension__ typedef unsigned int __id_t; __extension__ typedef long int __time_t; __extension__ typedef unsigned int __useconds_t; __extension__ typedef long int __suseconds_t; __extension__ typedef int __daddr_t; __extension__ typedef long int __swblk_t; __extension__ typedef int __key_t; __extension__ typedef int __clockid_t; __extension__ typedef void * __timer_t; __extension__ typedef long int __blksize_t; __extension__ typedef long int __blkcnt_t; __extension__ typedef __quad_t __blkcnt64_t; __extension__ typedef unsigned long int __fsblkcnt_t; __extension__ typedef __u_quad_t __fsblkcnt64_t; __extension__ typedef unsigned long int __fsfilcnt_t; __extension__ typedef __u_quad_t __fsfilcnt64_t; __extension__ typedef int __ssize_t; typedef __off64_t __loff_t; typedef __quad_t *__qaddr_t; typedef char *__caddr_t; __extension__ typedef int __intptr_t; __extension__ typedef unsigned int __socklen_t; # 32 "/usr/include/sys/types.h" 2 3 4 typedef __u_char u_char; typedef __u_short u_short; typedef __u_int u_int; typedef __u_long u_long; typedef __quad_t quad_t; typedef __u_quad_t u_quad_t; typedef __fsid_t fsid_t; typedef __loff_t loff_t; typedef __ino_t ino_t; # 62 "/usr/include/sys/types.h" 3 4 typedef __dev_t dev_t; typedef __gid_t gid_t; typedef __mode_t mode_t; typedef __nlink_t nlink_t; typedef __uid_t uid_t; typedef __off_t off_t; # 100 "/usr/include/sys/types.h" 3 4 typedef __pid_t pid_t; typedef __id_t id_t; typedef __ssize_t ssize_t; typedef __daddr_t daddr_t; typedef __caddr_t caddr_t; typedef __key_t key_t; # 133 "/usr/include/sys/types.h" 3 4 # 1 "/usr/include/time.h" 1 3 4 # 75 "/usr/include/time.h" 3 4 typedef __time_t time_t; # 93 "/usr/include/time.h" 3 4 typedef __clockid_t clockid_t; # 105 "/usr/include/time.h" 3 4 typedef __timer_t timer_t; # 134 "/usr/include/sys/types.h" 2 3 4 # 147 "/usr/include/sys/types.h" 3 4 # 1 "/usr/lib/gcc/i486-linux-gnu/4.3.2/include/stddef.h" 1 3 4 # 148 "/usr/include/sys/types.h" 2 3 4 typedef unsigned long int ulong; typedef unsigned short int ushort; typedef unsigned int uint; # 195 "/usr/include/sys/types.h" 3 4 typedef int int8_t __attribute__ ((__mode__ (__QI__))); typedef int int16_t __attribute__ ((__mode__ (__HI__))); typedef int int32_t __attribute__ ((__mode__ (__SI__))); typedef int int64_t __attribute__ ((__mode__ (__DI__))); typedef unsigned int u_int8_t __attribute__ ((__mode__ (__QI__))); typedef unsigned int u_int16_t __attribute__ ((__mode__ (__HI__))); typedef unsigned int u_int32_t __attribute__ ((__mode__ (__SI__))); typedef unsigned int u_int64_t __attribute__ ((__mode__ (__DI__))); typedef int register_t __attribute__ ((__mode__ (__word__))); # 217 "/usr/include/sys/types.h" 3 4 # 1 "/usr/include/endian.h" 1 3 4 # 37 "/usr/include/endian.h" 3 4 # 1 "/usr/include/bits/endian.h" 1 3 4 # 38 "/usr/include/endian.h" 2 3 4 # 218 "/usr/include/sys/types.h" 2 3 4 # 1 "/usr/include/sys/select.h" 1 3 4 # 31 "/usr/include/sys/select.h" 3 4 # 1 "/usr/include/bits/select.h" 1 3 4 # 32 "/usr/include/sys/select.h" 2 3 4 # 1 "/usr/include/bits/sigset.h" 1 3 4 # 24 "/usr/include/bits/sigset.h" 3 4 typedef int __sig_atomic_t; typedef struct { unsigned long int __val[(1024 / (8 * sizeof (unsigned long int)))]; } __sigset_t; # 35 "/usr/include/sys/select.h" 2 3 4 typedef __sigset_t sigset_t; # 1 "/usr/include/time.h" 1 3 4 # 121 "/usr/include/time.h" 3 4 struct timespec { __time_t tv_sec; long int tv_nsec; }; # 45 "/usr/include/sys/select.h" 2 3 4 # 1 "/usr/include/bits/time.h" 1 3 4 # 69 "/usr/include/bits/time.h" 3 4 struct timeval { __time_t tv_sec; __suseconds_t tv_usec; }; # 47 "/usr/include/sys/select.h" 2 3 4 typedef __suseconds_t suseconds_t; typedef long int __fd_mask; # 67 "/usr/include/sys/select.h" 3 4 typedef struct { __fd_mask __fds_bits[1024 / (8 * sizeof (__fd_mask))]; } fd_set; typedef __fd_mask fd_mask; # 99 "/usr/include/sys/select.h" 3 4 # 109 "/usr/include/sys/select.h" 3 4 extern int select (int __nfds, fd_set *__restrict __readfds, fd_set *__restrict __writefds, fd_set *__restrict __exceptfds, struct timeval *__restrict __timeout); # 121 "/usr/include/sys/select.h" 3 4 extern int pselect (int __nfds, fd_set *__restrict __readfds, fd_set *__restrict __writefds, fd_set *__restrict __exceptfds, const struct timespec *__restrict __timeout, const __sigset_t *__restrict __sigmask); # 221 "/usr/include/sys/types.h" 2 3 4 # 1 "/usr/include/sys/sysmacros.h" 1 3 4 # 30 "/usr/include/sys/sysmacros.h" 3 4 __extension__ extern unsigned int gnu_dev_major (unsigned long long int __dev) __attribute__ ((__nothrow__)); __extension__ extern unsigned int gnu_dev_minor (unsigned long long int __dev) __attribute__ ((__nothrow__)); __extension__ extern unsigned long long int gnu_dev_makedev (unsigned int __major, unsigned int __minor) __attribute__ ((__nothrow__)); # 224 "/usr/include/sys/types.h" 2 3 4 # 235 "/usr/include/sys/types.h" 3 4 typedef __blkcnt_t blkcnt_t; typedef __fsblkcnt_t fsblkcnt_t; typedef __fsfilcnt_t fsfilcnt_t; # 270 "/usr/include/sys/types.h" 3 4 # 1 "/usr/include/bits/pthreadtypes.h" 1 3 4 # 23 "/usr/include/bits/pthreadtypes.h" 3 4 # 1 "/usr/include/bits/wordsize.h" 1 3 4 # 24 "/usr/include/bits/pthreadtypes.h" 2 3 4 # 50 "/usr/include/bits/pthreadtypes.h" 3 4 typedef unsigned long int pthread_t; typedef union { char __size[36]; long int __align; } pthread_attr_t; # 67 "/usr/include/bits/pthreadtypes.h" 3 4 typedef struct __pthread_internal_slist { struct __pthread_internal_slist *__next; } __pthread_slist_t; typedef union { struct __pthread_mutex_s { int __lock; unsigned int __count; int __owner; int __kind; unsigned int __nusers; __extension__ union { int __spins; __pthread_slist_t __list; }; } __data; char __size[24]; long int __align; } pthread_mutex_t; typedef union { char __size[4]; int __align; } pthread_mutexattr_t; typedef union { struct { int __lock; unsigned int __futex; __extension__ unsigned long long int __total_seq; __extension__ unsigned long long int __wakeup_seq; __extension__ unsigned long long int __woken_seq; void *__mutex; unsigned int __nwaiters; unsigned int __broadcast_seq; } __data; char __size[48]; __extension__ long long int __align; } pthread_cond_t; typedef union { char __size[4]; int __align; } pthread_condattr_t; typedef unsigned int pthread_key_t; typedef int pthread_once_t; typedef union { # 170 "/usr/include/bits/pthreadtypes.h" 3 4 struct { int __lock; unsigned int __nr_readers; unsigned int __readers_wakeup; unsigned int __writer_wakeup; unsigned int __nr_readers_queued; unsigned int __nr_writers_queued; unsigned char __flags; unsigned char __shared; unsigned char __pad1; unsigned char __pad2; int __writer; } __data; char __size[32]; long int __align; } pthread_rwlock_t; typedef union { char __size[8]; long int __align; } pthread_rwlockattr_t; typedef volatile int pthread_spinlock_t; typedef union { char __size[20]; long int __align; } pthread_barrier_t; typedef union { char __size[4]; int __align; } pthread_barrierattr_t; # 271 "/usr/include/sys/types.h" 2 3 4 # 321 "/usr/include/stdlib.h" 2 3 4 extern long int random (void) __attribute__ ((__nothrow__)); extern void srandom (unsigned int __seed) __attribute__ ((__nothrow__)); extern char *initstate (unsigned int __seed, char *__statebuf, size_t __statelen) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2))); extern char *setstate (char *__statebuf) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))); struct random_data { int32_t *fptr; int32_t *rptr; int32_t *state; int rand_type; int rand_deg; int rand_sep; int32_t *end_ptr; }; extern int random_r (struct random_data *__restrict __buf, int32_t *__restrict __result) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern int srandom_r (unsigned int __seed, struct random_data *__buf) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2))); extern int initstate_r (unsigned int __seed, char *__restrict __statebuf, size_t __statelen, struct random_data *__restrict __buf) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2, 4))); extern int setstate_r (char *__restrict __statebuf, struct random_data *__restrict __buf) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern int rand (void) __attribute__ ((__nothrow__)); extern void srand (unsigned int __seed) __attribute__ ((__nothrow__)); extern int rand_r (unsigned int *__seed) __attribute__ ((__nothrow__)); extern double drand48 (void) __attribute__ ((__nothrow__)); extern double erand48 (unsigned short int __xsubi[3]) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))); extern long int lrand48 (void) __attribute__ ((__nothrow__)); extern long int nrand48 (unsigned short int __xsubi[3]) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))); extern long int mrand48 (void) __attribute__ ((__nothrow__)); extern long int jrand48 (unsigned short int __xsubi[3]) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))); extern void srand48 (long int __seedval) __attribute__ ((__nothrow__)); extern unsigned short int *seed48 (unsigned short int __seed16v[3]) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))); extern void lcong48 (unsigned short int __param[7]) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))); struct drand48_data { unsigned short int __x[3]; unsigned short int __old_x[3]; unsigned short int __c; unsigned short int __init; unsigned long long int __a; }; extern int drand48_r (struct drand48_data *__restrict __buffer, double *__restrict __result) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern int erand48_r (unsigned short int __xsubi[3], struct drand48_data *__restrict __buffer, double *__restrict __result) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern int lrand48_r (struct drand48_data *__restrict __buffer, long int *__restrict __result) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern int nrand48_r (unsigned short int __xsubi[3], struct drand48_data *__restrict __buffer, long int *__restrict __result) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern int mrand48_r (struct drand48_data *__restrict __buffer, long int *__restrict __result) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern int jrand48_r (unsigned short int __xsubi[3], struct drand48_data *__restrict __buffer, long int *__restrict __result) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern int srand48_r (long int __seedval, struct drand48_data *__buffer) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2))); extern int seed48_r (unsigned short int __seed16v[3], struct drand48_data *__buffer) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern int lcong48_r (unsigned short int __param[7], struct drand48_data *__buffer) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2))); extern void *malloc (size_t __size) __attribute__ ((__nothrow__)) __attribute__ ((__malloc__)) ; extern void *calloc (size_t __nmemb, size_t __size) __attribute__ ((__nothrow__)) __attribute__ ((__malloc__)) ; extern void *realloc (void *__ptr, size_t __size) __attribute__ ((__nothrow__)) __attribute__ ((__warn_unused_result__)); extern void free (void *__ptr) __attribute__ ((__nothrow__)); extern void cfree (void *__ptr) __attribute__ ((__nothrow__)); # 1 "/usr/include/alloca.h" 1 3 4 # 25 "/usr/include/alloca.h" 3 4 # 1 "/usr/lib/gcc/i486-linux-gnu/4.3.2/include/stddef.h" 1 3 4 # 26 "/usr/include/alloca.h" 2 3 4 extern void *alloca (size_t __size) __attribute__ ((__nothrow__)); # 498 "/usr/include/stdlib.h" 2 3 4 extern void *valloc (size_t __size) __attribute__ ((__nothrow__)) __attribute__ ((__malloc__)) ; extern int posix_memalign (void **__memptr, size_t __alignment, size_t __size) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))) ; extern void abort (void) __attribute__ ((__nothrow__)) __attribute__ ((__noreturn__)); extern int atexit (void (*__func) (void)) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))); extern int on_exit (void (*__func) (int __status, void *__arg), void *__arg) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))); extern void exit (int __status) __attribute__ ((__nothrow__)) __attribute__ ((__noreturn__)); # 543 "/usr/include/stdlib.h" 3 4 extern char *getenv (__const char *__name) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))) ; extern char *__secure_getenv (__const char *__name) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))) ; extern int putenv (char *__string) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))); extern int setenv (__const char *__name, __const char *__value, int __replace) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2))); extern int unsetenv (__const char *__name) __attribute__ ((__nothrow__)); extern int clearenv (void) __attribute__ ((__nothrow__)); # 583 "/usr/include/stdlib.h" 3 4 extern char *mktemp (char *__template) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))) ; # 594 "/usr/include/stdlib.h" 3 4 extern int mkstemp (char *__template) __attribute__ ((__nonnull__ (1))) ; # 614 "/usr/include/stdlib.h" 3 4 extern char *mkdtemp (char *__template) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))) ; # 640 "/usr/include/stdlib.h" 3 4 extern int system (__const char *__command) ; # 662 "/usr/include/stdlib.h" 3 4 extern char *realpath (__const char *__restrict __name, char *__restrict __resolved) __attribute__ ((__nothrow__)) ; typedef int (*__compar_fn_t) (__const void *, __const void *); extern void *bsearch (__const void *__key, __const void *__base, size_t __nmemb, size_t __size, __compar_fn_t __compar) __attribute__ ((__nonnull__ (1, 2, 5))) ; extern void qsort (void *__base, size_t __nmemb, size_t __size, __compar_fn_t __compar) __attribute__ ((__nonnull__ (1, 4))); extern int abs (int __x) __attribute__ ((__nothrow__)) __attribute__ ((__const__)) ; extern long int labs (long int __x) __attribute__ ((__nothrow__)) __attribute__ ((__const__)) ; extern div_t div (int __numer, int __denom) __attribute__ ((__nothrow__)) __attribute__ ((__const__)) ; extern ldiv_t ldiv (long int __numer, long int __denom) __attribute__ ((__nothrow__)) __attribute__ ((__const__)) ; # 727 "/usr/include/stdlib.h" 3 4 extern char *ecvt (double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (3, 4))) ; extern char *fcvt (double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (3, 4))) ; extern char *gcvt (double __value, int __ndigit, char *__buf) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (3))) ; extern char *qecvt (long double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (3, 4))) ; extern char *qfcvt (long double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (3, 4))) ; extern char *qgcvt (long double __value, int __ndigit, char *__buf) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (3))) ; extern int ecvt_r (double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign, char *__restrict __buf, size_t __len) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (3, 4, 5))); extern int fcvt_r (double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign, char *__restrict __buf, size_t __len) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (3, 4, 5))); extern int qecvt_r (long double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign, char *__restrict __buf, size_t __len) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (3, 4, 5))); extern int qfcvt_r (long double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign, char *__restrict __buf, size_t __len) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (3, 4, 5))); extern int mblen (__const char *__s, size_t __n) __attribute__ ((__nothrow__)) ; extern int mbtowc (wchar_t *__restrict __pwc, __const char *__restrict __s, size_t __n) __attribute__ ((__nothrow__)) ; extern int wctomb (char *__s, wchar_t __wchar) __attribute__ ((__nothrow__)) ; extern size_t mbstowcs (wchar_t *__restrict __pwcs, __const char *__restrict __s, size_t __n) __attribute__ ((__nothrow__)); extern size_t wcstombs (char *__restrict __s, __const wchar_t *__restrict __pwcs, size_t __n) __attribute__ ((__nothrow__)); extern int rpmatch (__const char *__response) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))) ; # 832 "/usr/include/stdlib.h" 3 4 extern int posix_openpt (int __oflag) ; # 867 "/usr/include/stdlib.h" 3 4 extern int getloadavg (double __loadavg[], int __nelem) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1))); # 883 "/usr/include/stdlib.h" 3 4 # 3 "test.c" 2 # 1 "/usr/include/stdio.h" 1 3 4 # 30 "/usr/include/stdio.h" 3 4 # 1 "/usr/lib/gcc/i486-linux-gnu/4.3.2/include/stddef.h" 1 3 4 # 35 "/usr/include/stdio.h" 2 3 4 # 45 "/usr/include/stdio.h" 3 4 struct _IO_FILE; typedef struct _IO_FILE FILE; # 65 "/usr/include/stdio.h" 3 4 typedef struct _IO_FILE __FILE; # 75 "/usr/include/stdio.h" 3 4 # 1 "/usr/include/libio.h" 1 3 4 # 32 "/usr/include/libio.h" 3 4 # 1 "/usr/include/_G_config.h" 1 3 4 # 15 "/usr/include/_G_config.h" 3 4 # 1 "/usr/lib/gcc/i486-linux-gnu/4.3.2/include/stddef.h" 1 3 4 # 16 "/usr/include/_G_config.h" 2 3 4 # 1 "/usr/include/wchar.h" 1 3 4 # 78 "/usr/include/wchar.h" 3 4 typedef struct { int __count; union { unsigned int __wch; char __wchb[4]; } __value; } __mbstate_t; # 21 "/usr/include/_G_config.h" 2 3 4 typedef struct { __off_t __pos; __mbstate_t __state; } _G_fpos_t; typedef struct { __off64_t __pos; __mbstate_t __state; } _G_fpos64_t; # 53 "/usr/include/_G_config.h" 3 4 typedef int _G_int16_t __attribute__ ((__mode__ (__HI__))); typedef int _G_int32_t __attribute__ ((__mode__ (__SI__))); typedef unsigned int _G_uint16_t __attribute__ ((__mode__ (__HI__))); typedef unsigned int _G_uint32_t __attribute__ ((__mode__ (__SI__))); # 33 "/usr/include/libio.h" 2 3 4 # 53 "/usr/include/libio.h" 3 4 # 1 "/usr/lib/gcc/i486-linux-gnu/4.3.2/include/stdarg.h" 1 3 4 # 43 "/usr/lib/gcc/i486-linux-gnu/4.3.2/include/stdarg.h" 3 4 typedef __builtin_va_list __gnuc_va_list; # 54 "/usr/include/libio.h" 2 3 4 # 170 "/usr/include/libio.h" 3 4 struct _IO_jump_t; struct _IO_FILE; # 180 "/usr/include/libio.h" 3 4 typedef void _IO_lock_t; struct _IO_marker { struct _IO_marker *_next; struct _IO_FILE *_sbuf; int _pos; # 203 "/usr/include/libio.h" 3 4 }; enum __codecvt_result { __codecvt_ok, __codecvt_partial, __codecvt_error, __codecvt_noconv }; # 271 "/usr/include/libio.h" 3 4 struct _IO_FILE { int _flags; char* _IO_read_ptr; char* _IO_read_end; char* _IO_read_base; char* _IO_write_base; char* _IO_write_ptr; char* _IO_write_end; char* _IO_buf_base; char* _IO_buf_end; char *_IO_save_base; char *_IO_backup_base; char *_IO_save_end; struct _IO_marker *_markers; struct _IO_FILE *_chain; int _fileno; int _flags2; __off_t _old_offset; unsigned short _cur_column; signed char _vtable_offset; char _shortbuf[1]; _IO_lock_t *_lock; # 319 "/usr/include/libio.h" 3 4 __off64_t _offset; # 328 "/usr/include/libio.h" 3 4 void *__pad1; void *__pad2; void *__pad3; void *__pad4; size_t __pad5; int _mode; char _unused2[15 * sizeof (int) - 4 * sizeof (void *) - sizeof (size_t)]; }; typedef struct _IO_FILE _IO_FILE; struct _IO_FILE_plus; extern struct _IO_FILE_plus _IO_2_1_stdin_; extern struct _IO_FILE_plus _IO_2_1_stdout_; extern struct _IO_FILE_plus _IO_2_1_stderr_; # 364 "/usr/include/libio.h" 3 4 typedef __ssize_t __io_read_fn (void *__cookie, char *__buf, size_t __nbytes); typedef __ssize_t __io_write_fn (void *__cookie, __const char *__buf, size_t __n); typedef int __io_seek_fn (void *__cookie, __off64_t *__pos, int __w); typedef int __io_close_fn (void *__cookie); # 416 "/usr/include/libio.h" 3 4 extern int __underflow (_IO_FILE *); extern int __uflow (_IO_FILE *); extern int __overflow (_IO_FILE *, int); # 458 "/usr/include/libio.h" 3 4 extern int _IO_getc (_IO_FILE *__fp); extern int _IO_putc (int __c, _IO_FILE *__fp); extern int _IO_feof (_IO_FILE *__fp) __attribute__ ((__nothrow__)); extern int _IO_ferror (_IO_FILE *__fp) __attribute__ ((__nothrow__)); extern int _IO_peekc_locked (_IO_FILE *__fp); extern void _IO_flockfile (_IO_FILE *) __attribute__ ((__nothrow__)); extern void _IO_funlockfile (_IO_FILE *) __attribute__ ((__nothrow__)); extern int _IO_ftrylockfile (_IO_FILE *) __attribute__ ((__nothrow__)); # 488 "/usr/include/libio.h" 3 4 extern int _IO_vfscanf (_IO_FILE * __restrict, const char * __restrict, __gnuc_va_list, int *__restrict); extern int _IO_vfprintf (_IO_FILE *__restrict, const char *__restrict, __gnuc_va_list); extern __ssize_t _IO_padn (_IO_FILE *, int, __ssize_t); extern size_t _IO_sgetn (_IO_FILE *, void *, size_t); extern __off64_t _IO_seekoff (_IO_FILE *, __off64_t, int, int); extern __off64_t _IO_seekpos (_IO_FILE *, __off64_t, int); extern void _IO_free_backup_area (_IO_FILE *) __attribute__ ((__nothrow__)); # 76 "/usr/include/stdio.h" 2 3 4 # 89 "/usr/include/stdio.h" 3 4 typedef _G_fpos_t fpos_t; # 141 "/usr/include/stdio.h" 3 4 # 1 "/usr/include/bits/stdio_lim.h" 1 3 4 # 142 "/usr/include/stdio.h" 2 3 4 extern struct _IO_FILE *stdin; extern struct _IO_FILE *stdout; extern struct _IO_FILE *stderr; extern int remove (__const char *__filename) __attribute__ ((__nothrow__)); extern int rename (__const char *__old, __const char *__new) __attribute__ ((__nothrow__)); extern FILE *tmpfile (void) ; # 186 "/usr/include/stdio.h" 3 4 extern char *tmpnam (char *__s) __attribute__ ((__nothrow__)) ; extern char *tmpnam_r (char *__s) __attribute__ ((__nothrow__)) ; # 204 "/usr/include/stdio.h" 3 4 extern char *tempnam (__const char *__dir, __const char *__pfx) __attribute__ ((__nothrow__)) __attribute__ ((__malloc__)) ; extern int fclose (FILE *__stream); extern int fflush (FILE *__stream); # 229 "/usr/include/stdio.h" 3 4 extern int fflush_unlocked (FILE *__stream); # 243 "/usr/include/stdio.h" 3 4 extern FILE *fopen (__const char *__restrict __filename, __const char *__restrict __modes) ; extern FILE *freopen (__const char *__restrict __filename, __const char *__restrict __modes, FILE *__restrict __stream) ; # 272 "/usr/include/stdio.h" 3 4 # 283 "/usr/include/stdio.h" 3 4 extern FILE *fdopen (int __fd, __const char *__modes) __attribute__ ((__nothrow__)) ; # 304 "/usr/include/stdio.h" 3 4 extern void setbuf (FILE *__restrict __stream, char *__restrict __buf) __attribute__ ((__nothrow__)); extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf, int __modes, size_t __n) __attribute__ ((__nothrow__)); extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf, size_t __size) __attribute__ ((__nothrow__)); extern void setlinebuf (FILE *__stream) __attribute__ ((__nothrow__)); extern int fprintf (FILE *__restrict __stream, __const char *__restrict __format, ...); extern int printf (__const char *__restrict __format, ...); extern int sprintf (char *__restrict __s, __const char *__restrict __format, ...) __attribute__ ((__nothrow__)); extern int vfprintf (FILE *__restrict __s, __const char *__restrict __format, __gnuc_va_list __arg); extern int vprintf (__const char *__restrict __format, __gnuc_va_list __arg); extern int vsprintf (char *__restrict __s, __const char *__restrict __format, __gnuc_va_list __arg) __attribute__ ((__nothrow__)); extern int snprintf (char *__restrict __s, size_t __maxlen, __const char *__restrict __format, ...) __attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 3, 4))); extern int vsnprintf (char *__restrict __s, size_t __maxlen, __const char *__restrict __format, __gnuc_va_list __arg) __attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 3, 0))); # 398 "/usr/include/stdio.h" 3 4 extern int fscanf (FILE *__restrict __stream, __const char *__restrict __format, ...) ; extern int scanf (__const char *__restrict __format, ...) ; extern int sscanf (__const char *__restrict __s, __const char *__restrict __format, ...) __attribute__ ((__nothrow__)); # 441 "/usr/include/stdio.h" 3 4 # 504 "/usr/include/stdio.h" 3 4 extern int fgetc (FILE *__stream); extern int getc (FILE *__stream); extern int getchar (void); # 528 "/usr/include/stdio.h" 3 4 extern int getc_unlocked (FILE *__stream); extern int getchar_unlocked (void); # 539 "/usr/include/stdio.h" 3 4 extern int fgetc_unlocked (FILE *__stream); extern int fputc (int __c, FILE *__stream); extern int putc (int __c, FILE *__stream); extern int putchar (int __c); # 572 "/usr/include/stdio.h" 3 4 extern int fputc_unlocked (int __c, FILE *__stream); extern int putc_unlocked (int __c, FILE *__stream); extern int putchar_unlocked (int __c); extern int getw (FILE *__stream); extern int putw (int __w, FILE *__stream); extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream) ; extern char *gets (char *__s) ; # 653 "/usr/include/stdio.h" 3 4 extern int fputs (__const char *__restrict __s, FILE *__restrict __stream); extern int puts (__const char *__s); extern int ungetc (int __c, FILE *__stream); extern size_t fread (void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __stream) ; extern size_t fwrite (__const void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __s) ; # 706 "/usr/include/stdio.h" 3 4 extern size_t fread_unlocked (void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __stream) ; extern size_t fwrite_unlocked (__const void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __stream) ; extern int fseek (FILE *__stream, long int __off, int __whence); extern long int ftell (FILE *__stream) ; extern void rewind (FILE *__stream); # 742 "/usr/include/stdio.h" 3 4 extern int fseeko (FILE *__stream, __off_t __off, int __whence); extern __off_t ftello (FILE *__stream) ; # 761 "/usr/include/stdio.h" 3 4 extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos); extern int fsetpos (FILE *__stream, __const fpos_t *__pos); # 784 "/usr/include/stdio.h" 3 4 # 793 "/usr/include/stdio.h" 3 4 extern void clearerr (FILE *__stream) __attribute__ ((__nothrow__)); extern int feof (FILE *__stream) __attribute__ ((__nothrow__)) ; extern int ferror (FILE *__stream) __attribute__ ((__nothrow__)) ; extern void clearerr_unlocked (FILE *__stream) __attribute__ ((__nothrow__)); extern int feof_unlocked (FILE *__stream) __attribute__ ((__nothrow__)) ; extern int ferror_unlocked (FILE *__stream) __attribute__ ((__nothrow__)) ; extern void perror (__const char *__s); # 1 "/usr/include/bits/sys_errlist.h" 1 3 4 # 27 "/usr/include/bits/sys_errlist.h" 3 4 extern int sys_nerr; extern __const char *__const sys_errlist[]; # 823 "/usr/include/stdio.h" 2 3 4 extern int fileno (FILE *__stream) __attribute__ ((__nothrow__)) ; extern int fileno_unlocked (FILE *__stream) __attribute__ ((__nothrow__)) ; # 842 "/usr/include/stdio.h" 3 4 extern FILE *popen (__const char *__command, __const char *__modes) ; extern int pclose (FILE *__stream); extern char *ctermid (char *__s) __attribute__ ((__nothrow__)); # 882 "/usr/include/stdio.h" 3 4 extern void flockfile (FILE *__stream) __attribute__ ((__nothrow__)); extern int ftrylockfile (FILE *__stream) __attribute__ ((__nothrow__)) ; extern void funlockfile (FILE *__stream) __attribute__ ((__nothrow__)); # 912 "/usr/include/stdio.h" 3 4 # 4 "test.c" 2 void f(const char* str1, const char* str2) { const char* fmt = "Something is: %s, and something another is: %s\n"; const size_t buff_len = strlen(fmt) + strlen(str1) + strlen(str2) + 1; char* buff = (char*)malloc(buff_len); sprintf(buff, fmt, "Str1", "str2"); free(buff); } int main() { return 0; } -- Summary: Incorrect argument checking for printf: "format not a string literal, argument types not checked", where it can be checked Product: gcc Version: 4.3.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rilium at mail dot ru http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37975