mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 05:00:15 +00:00
32 lines
1.3 KiB
C
32 lines
1.3 KiB
C
#ifndef _MATH_PRIVATE_H
|
|
|
|
/* Internally, we suppress any use of exception or rounding other
|
|
than what is supported by the hardware. This does mean that some
|
|
code will silently fail to report exceptions, set rounding mode
|
|
as expected, etc., but it allows math code to compile that otherwise
|
|
wouldn't (such as math/s_fma.c) and so is valuable.
|
|
|
|
We intentionally ignore the "exception" arguments of functions that
|
|
take an exception, since we can't even evaluate the argument
|
|
without causing a build failure. The extra level of statement
|
|
expression wrapping avoids "statement with no effect" warnings.
|
|
Since the callers don't check for errors anyway, we just claim
|
|
success in every case.
|
|
|
|
The overrides for libc_ functions must happen before we include
|
|
the generic math_private.h, and the overrides for regular
|
|
<fenv.h> functions must happen afterwards, to avoid clashing with
|
|
the declarations of those functions. */
|
|
|
|
#define libc_fesetround(rnd) ({ 0; })
|
|
#define libc_fetestexcept(exc) ({ 0; })
|
|
#define libc_feholdexcept_setround(env, exc) ({ (void) (env); 0; })
|
|
#define libc_feupdateenv_test(env, exc) ({ (void) (env); 0; })
|
|
|
|
#include_next <math_private.h>
|
|
|
|
#define feraiseexcept(excepts) ({ 0; })
|
|
#define feclearexcept(exc) ({ 0; })
|
|
|
|
#endif
|