From b19339d4356efbd9b49f73e67ed7c09b9dad4b75 Mon Sep 17 00:00:00 2001 From: Sergei Trofimovich Date: Thu, 16 May 2013 12:24:17 +0300 Subject: [PATCH 1/2] types: add sanity tests for used sizes Signed-off-by: Sergei Trofimovich --- a/gccmod.inc +++ b/gccmod.inc @@ -6,6 +6,7 @@ $(OUTD)/atofloat.o \ $(OUTD)/backptch.o \ $(OUTD)/bin.o \ $(OUTD)/branch.o \ +$(OUTD)/checks.o \ $(OUTD)/cmdline.o \ $(OUTD)/codegen.o \ $(OUTD)/coff.o \ --- /dev/null +++ b/src/checks.c @@ -0,0 +1,26 @@ +/**************************************************************************** +* +* This code is Public Domain. +* +* ======================================================================== +* +* Description: make sure "inttype.h" filelds are of the desired size. +* +****************************************************************************/ + +#include "inttype.h" + +/* fails to compile if type sizes are of unexpected size */ +static void validate_inttype_sizes() +{ +/* try to create */ +#define T_IS_SIZE(__type, __expected_size, __test_name) \ + char __test_name[2 * (sizeof (__type) == (__expected_size)) - 1]; + + T_IS_SIZE(uint_8, 1, size_of_uint_8_must_be_1_byte); + T_IS_SIZE(uint_16, 2, size_of_uint_16_must_be_2_bytes); + T_IS_SIZE(uint_32, 4, size_of_uint_32_must_be_4_bytes); + T_IS_SIZE(uint_64, 8, size_of_uint_64_must_be_8_bytes); + +#undef T_IS_SIZE +} -- 1.8.2.1