Package: cpp-4.9 Version: 4.9.2-10 Severity: minor The following program,
#include <string.h> #include <assert.h> int main() { const char *a = "xyz", *b = a; assert(strncmp(a, b, 3) == 0); return 0; } compiles fine with "gcc -Wall -ansi -pedantic -W program.c", but emits a warning when compiled with "gcc -Wall -ansi -pedantic -W -O program.c", namely program.c: In function 'main': program.c:6:5: warning: string length '2172' is greater than the length '509' ISO C90 compilers are required to support [-Woverlength-strings] assert(strncmp(a, b, 3) == 0); ^ The reason is that the -O option makes cpp expand "strncmp(a, b, 3)" into an inline monster. Best regards, g. -- System Information: Debian Release: 8.8 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 3.16.0-4-amd64 (SMP w/2 CPU cores) Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages cpp-4.9 depends on: ii gcc-4.9-base 4.9.2-10 ii libc6 2.19-18+deb8u9 ii libcloog-isl4 0.18.2-1+b2 ii libgmp10 2:6.0.0+dfsg-6 ii libisl10 0.12.2-2 ii libmpc3 1.0.2-1 ii libmpfr4 3.1.2-2 ii zlib1g 1:1.2.8.dfsg-2+b1 cpp-4.9 recommends no packages. Versions of packages cpp-4.9 suggests: pn gcc-4.9-locales <none> -- no debconf information