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