header

<cfenv> (fenv.h)

Floating-point environment
This header declares a set of functions and macros to access the floating-point environment, along with specific types.

The floating-point environment maintains a series of status flags and specific control modes. Specific about the contents of the floating-point environment depend on the implementation, but the status flags generally include the floating-point exceptions and their associated information, and the control modes include at least the rounding direction.

Functions


Floating-point exceptions


Rounding direction


Entire environment


Other


Types


Macro constants


Floating-point exceptions


Rounding directions


Entire evnironment


Pragmas

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