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From: | Michael Matz |
Subject: | Re: [Tinycc-devel] Many new errors on RPi because of ssize_t incompatible redefinition |
Date: | Tue, 25 Jul 2017 23:01:24 +0200 (CEST) |
User-agent: | Alpine 2.20 (LSU 67 2015-01-07) |
Hi, On Tue, 25 Jul 2017, grischka wrote:
uso ewin wrote:I guess ptrdiff_t should indeed be a long int, but ssize_t should be an int,same for intptr_t and uintptr_t should be an unsigned int.gcc 6.3.0 on win32 (32bits):test.c:9:14: error: '_Generic' selector of type 'int' is not compatible with any association_Generic((ptrdiff_t)0, void*:0); ^ So at least this gcc thinks that ptrdiff_t is of type 'int'.
You can definitely find out with: % echo __PTRDIFF_TYPE__ | gcc -EThat is the value that tcc must use as well (and then stddef.h is supposed to simply use that macro, but only to define ptrdiff_t, not any related types, which shouldn't come from stddef.h at all actually). And yes, GCCs use 'int' for -m32 normally and 'long int' for -m64.
So the state with commit 28b7c9 was actually correct and was unfixed with the later 52622c.
Ciao, Michael.
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