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              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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