ldexp, ldexpf : load exponent

Synopsis

#include <math.h>
double ldexp(double val, int exp);
float ldexpf(float val, int exp);
```### Description

ldexp calculates the value ldexpf is identical, save that it takes and returns float rather than double values.### Returns

ldexp returns the calculated value. Underflow and overflow both set errno to ERANGE. On underflow, ldexp and ldexpf return 0.0. On overflow, ldexp returns plus or minus HUGE_VAL.

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**Authoritative source**: BUSMASTER DITA help source `ldexp.dita`, compiled into `BUSMASTER.CHM` with the application.