From ec72135e5f1d061cb5cf7cd1b855fd6290be10d9 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Tue, 14 Nov 2017 17:50:36 +0000 Subject: Fix string/bug-strncat1.c build with GCC 8. GCC 8 warns about strncat calls with truncated output. string/bug-strncat1.c tests such a call; this patch disables the warning for it. Tested (compilation) with GCC 8 for x86_64-linux-gnu with build-many-glibcs.py (in conjunction with Martin's patch to allow glibc to build). * string/bug-strncat1.c: Include . (main): Disable -Wstringop-truncation for strncat call for GCC 8. --- string/bug-strncat1.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'string') diff --git a/string/bug-strncat1.c b/string/bug-strncat1.c index f1b5c37..b22beba 100644 --- a/string/bug-strncat1.c +++ b/string/bug-strncat1.c @@ -4,13 +4,21 @@ #include #include #include +#include char d[3] = "\0\1\2"; int main (void) { + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (8, 0) + /* GCC 8 warns about strncat truncating output; this is deliberately + tested here. */ + DIAG_IGNORE_NEEDS_COMMENT (8, "-Wstringop-truncation"); +#endif strncat (d, "\5\6", 1); + DIAG_POP_NEEDS_COMMENT; if (d[0] != '\5') { puts ("d[0] != '\\5'"); -- cgit v1.1