From 87f543aea5b9c0a70c687adfa84a43595ef14a77 Mon Sep 17 00:00:00 2001 From: Jim Meyering Date: Wed, 29 Jun 2005 16:23:15 +0000 Subject: [PATCH] (VERIFY): Rewrite to use string-concatenation and __LINE__ so as not to require a struct name parameter. (GL_CONCAT, GL_CONCAT2, GL_LINE_CONCAT): Define helper macros. --- src/system.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/system.h b/src/system.h index 0ffc8a5899..79d6dbb393 100644 --- a/src/system.h +++ b/src/system.h @@ -812,8 +812,12 @@ ptr_align (void const *ptr, size_t alignment) return (void *) (p1 - (size_t) p1 % alignment); } +#define GL_CONCAT(x,y) x##y +#define GL_CONCAT2(x,y) GL_CONCAT(x,y) +#define GL_LINE_CONCAT(x) GL_CONCAT2(x, __LINE__) /* Verify a requirement at compile-time (unlike assert, which is runtime). */ -#define VERIFY(name, assertion) struct name { char a[(assertion) ? 1 : -1]; } +#define VERIFY(assertion) \ + struct GL_LINE_CONCAT(compile_time_assert) { char a[(assertion) ? 1 : -1]; } /* Like the above, but use an expression rather than a struct declaration. This macro may be used in some contexts where the other may not. */ -- 2.47.3