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[avr-libc-dev] [bug #41689] static_assert

From: anonymous
Subject: [avr-libc-dev] [bug #41689] static_assert
Date: Wed, 11 Mar 2015 16:22:58 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0 Iceweasel/31.5.0

Follow-up Comment #1, bug #41689 (project avr-libc):

_Static_assert may be ugly, but it's what ISO C mandates:


static_assert is syntactic sugar imported by <assert.h>.

With gcc, here is a bit of confusion on which is defined when. gcc 4.6
supports _Static_assert, but assert.h has static_assert only when std==c11. In
gcc 4.7, static_assert is defined by assert.h even if std!==c11 (apparently).

I use the following chunk of code to get as much as is available:

#if (__STDC_VERSION__ >= 201112L)
#include <assert.h>
#elif (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
#define static_assert(condition, message) _Static_assert(condition, message)
#define static_assert(condition, message)


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