20 lines
616 B
C
20 lines
616 B
C
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#include <fenv.h>
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/* 7.6.2.3
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The feraiseexcept function raises the supported exceptions
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represented by its argument The order in which these exceptions
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are raised is unspecified, except as stated in F.7.6.
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Whether the feraiseexcept function additionally raises
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the inexact exception whenever it raises the overflow
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or underflow exception is implementation-defined. */
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int feraiseexcept (int excepts)
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{
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fenv_t _env;
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__asm__ volatile ("fnstenv %0;" : "=m" (_env));
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_env.__status_word |= excepts & FE_ALL_EXCEPT;
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__asm__ volatile ("fldenv %0;"
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"fwait;" : : "m" (_env));
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return 0;
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}
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