C99 rounding mode and floating-point exception macros

Note

The following functionality requires you to select a floating-point model that supports exceptions, such as --fpmode=ieee_full or --fpmode=ieee_fixed.

C99 defines a macro for each rounding mode and each exception. The macros are:

The exception macros are bit fields. The macro FE_ALL_EXCEPT is the bitwise OR of all of them.

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