From c82f5c0ce5c1c0180fca311ceb29fd2d59da7441 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Wed, 26 Nov 2014 00:45:19 +0000 Subject: Fix warning in setjmp/jmpbug.c. This patch fixes a "set but not used" warning in setjmp/jmpbug.c. A variable is used only to store the result of alloca. A cast to void is added to avoid the warning, and the variable is made volatile to ensure the call to alloca isn't optimized away for being unused. Tested for x86_64. * setjmp/jmpbug.c (test): Make foo volatile and cast it to void. --- setjmp/jmpbug.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'setjmp') diff --git a/setjmp/jmpbug.c b/setjmp/jmpbug.c index 125977b..8594c5a 100644 --- a/setjmp/jmpbug.c +++ b/setjmp/jmpbug.c @@ -14,7 +14,7 @@ static void test (int x) { jmp_buf buf; - char *foo; + char *volatile foo; int arr[100]; arr[77] = x; @@ -25,6 +25,7 @@ test (int x) } foo = (char *) alloca (128); + (void) foo; sub5 (buf); } -- cgit v1.1