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std::frexp

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Defined in header <cmath>
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float       frexp( float arg, int* exp );
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double      frexp( double arg, int* exp );
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long double frexp( long double arg, int* exp );
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double      frexp( Integral arg, int* exp );
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Decomposes given floating point value to significand and exponent.

Parameters

arg - floating point value
exp - pointer to integer value to store the exponent to

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.

See also

Template:cpp/numeric/math/dcl list ldexpTemplate:cpp/numeric/math/dcl list logbTemplate:cpp/numeric/math/dcl list ilogbTemplate:cpp/numeric/math/dcl list modf