frexp
From cppreference.com
| Defined in header <math.h>
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| float frexpf( float arg, int* exp ); |
(since C99) | |
| double frexp( double arg, int* exp ); |
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| long double frexpl( long double arg, int* exp ); |
(since C99) | |
Decomposes given floating point value to significand and exponent.
[edit] Parameters
| arg | - | floating point value |
| exp | - | pointer to integer value to store the exponent to |
[edit] Return value
Significand of the given floating point number in the range of [0.5; 1). The exponent is put into integer value pointed to by exp.
[edit] See also
| multiplies a number by 2 raised to a power (function) | |
| (C99) |
extracts exponent of the number (function) |
| (C99) |
extracts exponent of the number (function) |
| decomposes a number into integer and fractional parts (function) | |
| C++ documentation for frexp
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