------- Comment #16 from joseph at codesourcery dot com 2009-04-01 14:26 ------- Subject: Re: <stdint.h>-related issues (C99 issues)
On Wed, 1 Apr 2009, dominiq at lps dot ens dot fr wrote: > On *-darwin* we have > > FAIL: gcc.dg/c99-stdint-1.c (test for excess errors) > FAIL: gcc.dg/c99-stdint-2.c (test for excess errors) > FAIL: gcc.dg/c99-stdint-5.c (test for excess errors) > FAIL: gcc.dg/c99-stdint-6.c (test for excess errors) Errors are expected until someone adds the relevant type information for Darwin to GCC and fixes any bugs in its system stdint.h. > Errors for 99-stdint-[12].c: > > /opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/c99-stdint-1.c: In function > 'test_ptr': > /opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/c99-stdint-1.c:186: error: > initialization from incompatible pointer type > /opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/c99-stdint-1.c:186: error: > initialization from incompatible pointer type > /opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/c99-stdint-1.c:189: error: > initialization from incompatible pointer type This means there is something wrong with the definitions of intptr_t, uintptr_t and their limits in the system stdint.h. It can be fixed in GCC with fixincludes, but should also be reported upstream. > /opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/c99-stdint-1.c: In function > 'test_misc_limits': > /opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/c99-stdint-1.c:217: error: > initialization from incompatible pointer type Either the size_t limits are wrong or GCC disagrees with the system on what type size_t should be. > /opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/c99-stdint-1.c: In function > 'test_constants': > /opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/c99-stdint-1.c:230: error: pointer > targets in initialization differ in signedness > /opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/c99-stdint-1.c:230: error: pointer > targets in initialization differ in signedness > /opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/c99-stdint-1.c:230: error: pointer > targets in initialization differ in signedness > /opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/c99-stdint-1.c:231: error: pointer > targets in initialization differ in signedness > /opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/c99-stdint-1.c:231: error: pointer > targets in initialization differ in signedness > /opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/c99-stdint-1.c:231: error: pointer > targets in initialization differ in signedness The Darwin header wrongly uses unsigned types for the results of UINT8_C and UINT16_C. Report the bug upstream (with reference to C99 TC1), fix with fixincludes. > and for c99-stdint-[56].c: These will fail until GCC knows internally what the types are. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=448
