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From Davi Arnaut <d...@haxent.com.br>
Subject Re: apr_ssize_t and APR_SSIZE_T_FMT
Date Mon, 09 Jul 2007 22:12:12 GMT
Joe Orton wrote:
> On Mon, Jul 09, 2007 at 10:54:12PM +0100, Joe Orton wrote:
>> On Mon, Jul 09, 2007 at 06:25:27PM -0300, Davi Arnaut wrote:
>>> +AC_DEFUN([APR_CHECK_TYPES_COMPATIBLE], [
>>> +AC_MSG_CHECKING(whether $1 and $2 are the same)
>>> +AC_TRY_COMPILE(AC_INCLUDES_DEFAULT, [
>>> +    __builtin_types_compatible_p($1, $2);
>>> +], [apr_types_compile=yes], [apr_types_compile=no])
>>> +AC_RUN_IFELSE([AC_LANG_SOURCE([AC_INCLUDES_DEFAULT
>> This should really cache properly; compiling as well as running is 
>> redundant too; something like this should do it:
> 
> Or just compile and use one of those neat tricks I can never remember to 
> arrange for a compiler error in one of the cases...
> 
> int foo[0 - __builtin_thing()];
> 

+1!!

int foo[-!__builtin_thing()];

--
Davi Arnaut



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