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769998892d
TS 18661-1 defines *fromfp* functions, which are declared in math.h and whose return types are intmax_t and uintmax_t, without allowing math.h to define those typedefs. (This is similar to e.g. ISO C declaring vprintf in stdio.h without allowing that header to define va_list.) Thus, math.h needs to access those typedefs under internal names. This patch accordingly arranges for bits/types.h (which defines only internal names, not public *_t typedefs) to define __intmax_t and __uintmax_t. stdint.h is made to use bits/types.h and define intmax_t and uintmax_t using __intmax_t and __uintmax_t, to avoid duplication of information. (It would be reasonable to define more of the types in stdint.h - and in sys/types.h, where it duplicates such types - using information already available in bits/types.h.) The idea is that the subsequent addition of fromfp functions would then make math.h include bits/types.h and use __intmax_t and __uintmax_t as the return types of those functions. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by the patch). * bits/types.h (__intmax_t): New typedef. (__uintmax_t): Likewise. * sysdeps/generic/stdint.h: Include <bits/types.h>. (intmax_t): Define using __intmax_t. (uintmax_t): Define using __uintmax_t. |
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