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1 perry 1 FREXP
2 !!!FREXP
3 NAME
4 SYNOPSIS
5 DESCRIPTION
6 RETURN VALUE
7 CONFORMING TO
8 SEE ALSO
9 ----
10 !!NAME
11
12
13 frexp - convert floating-point number to fractional and integral components
14 !!SYNOPSIS
15
16
17 __#include
18 __ ''x''__, int *__''exp''__);
19 __
20 !!DESCRIPTION
21
22
23 The __frexp()__ function is used to split the number
24 ''x'' into a normalized fraction and an exponent which is
25 stored in ''exp''.
26 !!RETURN VALUE
27
28
29 The __frexp()__ function returns the normalized fraction.
30 If the argument ''x'' is not zero, the normalized
31 fraction is ''x'' times a power of two, and is always in
32 the range 1/2 (inclusive) to 1 (exclusive). If ''x'' is
33 zero, then the normalized fraction is zero and zero is
34 stored in ''exp''.
35 !!CONFORMING TO
36
37
38 SVID 3, POSIX, BSD 4.3, ISO 9899
39 !!SEE ALSO
40
41
42 ldexp(3), modf(3)
43 ----
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