GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
Unix |
Unix v7 |
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frexp(3) |
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frexp, ldexp, modf − split into mantissa and exponent
double
frexp(value, eptr)
double value;
int *eptr;
double
ldexp(value, exp)
double value;
double
modf(value, iptr)
double value, *iptr;
Frexp returns the mantissa of a double value as a double quantity, x, of magnitude less than 1 and stores an integer n such that value = x*2**n indirectly through eptr.
Ldexp returns the quantity value*2**exp.
Modf returns the positive fractional part of value and stores the integer part indirectly through iptr.
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frexp(3) | |