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18 lines
527 B
C
18 lines
527 B
C
#include <fenv.h>
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/* 7.6.2.5
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The fetestexcept function determines which of a specified subset of
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the exception flags are currently set. The excepts argument
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specifies the exception flags to be queried.
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The fetestexcept function returns the value of the bitwise OR of the
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exception macros corresponding to the currently set exceptions
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included in excepts.
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*/
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int fetestexcept (int excepts)
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{
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unsigned short _sw;
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__asm__ ("fnstsw %%ax" : "=a" (_sw));
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return _sw & excepts & FE_ALL_EXCEPT;
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}
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