From f74ae3257a2edb9756d9f0442c1314306e936759 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 29 Mar 2012 14:58:33 +1030 Subject: cast: make sure suncc sees a constant. cast_const() et. al. are supposed to be a constant expression, so you can do things like: static char *p = cast_const(char *, (const char *)"hello"); Unfortunately, a cast to intptr_t and arithmetic makes suncc reject it as a constant expression. We need the cast, because (1) the expression could be a void *, so we can't just add to it, and (2) gcc complains with -Wcast-qual without it. So instead of adding BUILD_BUG_OR_ZERO, we use a ? :, which keeps everyone happy. Signed-off-by: Rusty Russell (Imported from CCAN commit 74859ab18b10aaf990848e49d7789ff5c6cf96c6) Autobuild-User: Rusty Russell Autobuild-Date: Thu Mar 29 08:18:57 CEST 2012 on sn-devel-104 --- lib/ccan/cast/test/compile_ok-static.c | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 lib/ccan/cast/test/compile_ok-static.c (limited to 'lib/ccan/cast/test') diff --git a/lib/ccan/cast/test/compile_ok-static.c b/lib/ccan/cast/test/compile_ok-static.c new file mode 100644 index 0000000000..98b667e834 --- /dev/null +++ b/lib/ccan/cast/test/compile_ok-static.c @@ -0,0 +1,10 @@ +/* OpenIndiana's CC (aka suncc) has issues with constants: make sure + * we are one! */ +#include + +static char *p = cast_const(char *, (const char *)"hello"); + +int main(int argc, char *argv[]) +{ + return p[0] == argv[0][0]; +} -- cgit