FREXP (3) | C library functions | Unix Manual Pages



FREXP (3) \| C library functions \| Unix Manual Pages \| :man▋ NAME frexp, frexpf, frexpl - convert floating-point number to fractional and integral components CONTENTS Library Synopsis Description Return Values See Also Standards LIBRARY .Lb libm SYNOPSIS .In math.h double `frexp "double value" "int exp"` float* `frexpf "float value" "int exp"` long double* `frexpl "long double value" "int exp"` DESCRIPTION The `frexp`, `frexpf` and `frexpl` functions break a floating-point number into a normalized fraction and an integral power of 2. They store the integer in the .Vt int object pointed to by exp. RETURN VALUES These functions return the value x, such that x is a .Vt double with magnitude in the interval [1/2, 1) or zero, and value* equals x times 2 raised to the power exp. If value* is zero, both parts of the result are zero. SEE ALSO ldexp(3), math(3), modf(3) STANDARDS

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