[unix-history] / usr / man / man3 / frexp.3

.if t .ds s \d*\u
.if n .ds s *
.TH FREXP 3
.SH NAME
frexp, ldexp, modf \- split into mantissa and exponent
.SH SYNOPSIS
.B double frexp(value, eptr)
.br
.B double value;
.br
.B int *eptr;
.PP
.B double ldexp(value, exp)
.br
.B double value;
.PP
.B double modf(value, iptr)
.br
.B double value, *iptr;
.SH DESCRIPTION
.I Frexp
returns the mantissa of a double 
.I value
as a double quantity,
.I x,
of magnitude less than 1
and stores an integer 
.I n
such that
.I value
=
\fIx\fP\|\(**\|2\u\fIn\fP\d
indirectly through 
.I eptr.
.PP
.I Ldexp
returns the quantity
\fIvalue\|\(**\|2\u\fIexp\fP\d.
.PP
.I Modf
returns the positive fractional part of
.I value
and stores the integer part indirectly
through 
.I iptr.
Commit	Line	Data
4f88ca45 TL	1	.if t .ds s \d*\u
	2	.if n .ds s *
	3	.TH FREXP 3
	4	.SH NAME
	5	frexp, ldexp, modf \- split into mantissa and exponent
	6	.SH SYNOPSIS
	7	.B double frexp(value, eptr)
	8	.br
	9	.B double value;
	10	.br
	11	.B int *eptr;
	12	.PP
	13	.B double ldexp(value, exp)
	14	.br
	15	.B double value;
	16	.PP
	17	.B double modf(value, iptr)
	18	.br
	19	.B double value, *iptr;
	20	.SH DESCRIPTION
	21	.I Frexp
	22	returns the mantissa of a double
	23	.I value
	24	as a double quantity,
	25	.I x,
	26	of magnitude less than 1
	27	and stores an integer
	28	.I n
	29	such that
	30	.I value
	31	=
	32	\fIx\fP\\|\(**\\|2\u\fIn\fP\d
	33	indirectly through
	34	.I eptr.
	35	.PP
	36	.I Ldexp
	37	returns the quantity
	38	\fIvalue\\|\(**\\|2\u\fIexp\fP\d.
	39	.PP
	40	.I Modf
	41	returns the positive fractional part of
	42	.I value
	43	and stores the integer part indirectly
	44	through
	45	.I iptr.