https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85802
Bug ID: 85802 Summary: false-positive -Wmemset-elt-size when compiling C++ code Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: mail at milianw dot de Target Milestone: --- $ cat test.c #include <string.h> int main() { const size_t MAX_SIZE = 1024; char* buf[MAX_SIZE]; memset(buf, 0, MAX_SIZE); return 0; } $ gcc -Wmemset-elt-size test.c # no warnings $ g++ -Wmemset-elt-size test.c test.c: In function ‘int main()’: test.c:7:28: warning: ‘memset’ used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size] memset(buf, 0, MAX_SIZE); $ g++ --version g++ (GCC) 8.1.0 Adding an explicit `* sizeof(char)` doesn't help to silence the warning.