[thirdparty/man-pages.git] / man3 / qecvt.3

.\" Copyright (C) 2002 Andries Brouwer <aeb@cwi.nl>
.\"
.\" %%%LICENSE_START(VERBATIM)
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date.  The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein.  The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\" %%%LICENSE_END
.\"
.\" This replaces an earlier man page written by Walter Harms
.\" <walter.harms@informatik.uni-oldenburg.de>.
.\"
.TH QECVT 3  2016-03-15 "GNU" "Linux Programmer's Manual"
.SH NAME
qecvt, qfcvt, qgcvt \- convert a floating-point number to a string
.SH SYNOPSIS
.B #include <stdlib.h>
.PP
.BI "char *qecvt(long double " number ", int " ndigits ", int *" decpt ,
.BI "int *" sign );
.PP
.BI "char *qfcvt(long double " number ", int " ndigits ", int *" decpt ,
.BI "int *" sign );
.PP
.BI "char *qgcvt(long double " number ", int " ndigit ", char *" buf );
.PP
.in -4n
Feature Test Macro Requirements for glibc (see
.BR feature_test_macros (7)):
.in
.PP
.ad l
.BR qecvt (),
.BR qfcvt (),
.BR qgcvt ():
_SVID_SOURCE
.ad b
.\" FIXME . The full FTM picture looks to have be something like the
.\" following mess:
.\"    glibc 2.20 onward
.\"        _DEFAULT_SOURCE
.\"    glibc 2.18 to glibc 2.19
.\"        _BSD_SOURCE || _SVID_SOURCE
.\"    glibc 2.10 to glibc 2.17
.\"        _SVID_SOURCE || (_XOPEN_SOURCE >= 500 ||
.\"            (_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED) &&
.\"                ! (_POSIX_C_SOURCE >= 200809L))
.\"    Before glibc 2.10:
.\"        _SVID_SOURCE || _XOPEN_SOURCE >= 500 ||
.\"            (_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED)
.SH DESCRIPTION
The functions
.BR qecvt (),
.BR qfcvt (),
and
.BR qgcvt ()
are identical to
.BR ecvt (3),
.BR fcvt (3),
and
.BR gcvt (3)
respectively, except that they use a
.I "long double"
argument
.IR number .
See
.BR ecvt (3)
and
.BR gcvt (3).
.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
.TS
allbox;
lb lb lb
l l l.
Interface	Attribute	Value
T{
.BR qecvt ()
T}	Thread safety	MT-Unsafe race:qecvt
T{
.BR qfcvt ()
T}	Thread safety	MT-Unsafe race:qfcvt
T{
.BR qgcvt ()
T}	Thread safety	MT-Safe
.TE
.SH CONFORMING TO
SVr4.
Not seen in most common UNIX implementations,
but occurs in SunOS.
.\" Not supported by libc4 and libc5.
Supported by glibc.
.SH NOTES
These functions are obsolete.
Instead,
.BR snprintf (3)
is recommended.
.SH SEE ALSO
.BR ecvt (3),
.BR ecvt_r (3),
.BR gcvt (3),
.BR sprintf (3)
Commit	Line	Data
	1	.\" Copyright (C) 2002 Andries Brouwer <aeb@cwi.nl>
	2	.\"
	3	.\" %%%LICENSE_START(VERBATIM)
	4	.\" Permission is granted to make and distribute verbatim copies of this
	5	.\" manual provided the copyright notice and this permission notice are
	6	.\" preserved on all copies.
	7	.\"
	8	.\" Permission is granted to copy and distribute modified versions of this
	9	.\" manual under the conditions for verbatim copying, provided that the
	10	.\" entire resulting derived work is distributed under the terms of a
	11	.\" permission notice identical to this one.
	12	.\"
	13	.\" Since the Linux kernel and libraries are constantly changing, this
	14	.\" manual page may be incorrect or out-of-date. The author(s) assume no
	15	.\" responsibility for errors or omissions, or for damages resulting from
	16	.\" the use of the information contained herein. The author(s) may not
	17	.\" have taken the same level of care in the production of this manual,
	18	.\" which is licensed free of charge, as they might when working
	19	.\" professionally.
	20	.\"
	21	.\" Formatted or processed versions of this manual, if unaccompanied by
	22	.\" the source, must acknowledge the copyright and authors of this work.
	23	.\" %%%LICENSE_END
	24	.\"
	25	.\" This replaces an earlier man page written by Walter Harms
	26	.\" <walter.harms@informatik.uni-oldenburg.de>.
	27	.\"
	28	.TH QECVT 3 2016-03-15 "GNU" "Linux Programmer's Manual"
	29	.SH NAME
	30	qecvt, qfcvt, qgcvt \- convert a floating-point number to a string
	31	.SH SYNOPSIS
	32	.B #include <stdlib.h>
	33	.PP
	34	.BI "char qecvt(long double " number ", int " ndigits ", int " decpt ,
	35	.BI "int *" sign );
	36	.PP
	37	.BI "char qfcvt(long double " number ", int " ndigits ", int " decpt ,
	38	.BI "int *" sign );
	39	.PP
	40	.BI "char qgcvt(long double " number ", int " ndigit ", char " buf );
	41	.PP
	42	.in -4n
	43	Feature Test Macro Requirements for glibc (see
	44	.BR feature_test_macros (7)):
	45	.in
	46	.PP
	47	.ad l
	48	.BR qecvt (),
	49	.BR qfcvt (),
	50	.BR qgcvt ():
	51	_SVID_SOURCE
	52	.ad b
	53	.\" FIXME . The full FTM picture looks to have be something like the
	54	.\" following mess:
	55	.\" glibc 2.20 onward
	56	.\" _DEFAULT_SOURCE
	57	.\" glibc 2.18 to glibc 2.19
	58	.\" _BSD_SOURCE \|\| _SVID_SOURCE
	59	.\" glibc 2.10 to glibc 2.17
	60	.\" _SVID_SOURCE \|\| (_XOPEN_SOURCE >= 500 \|\|
	61	.\" (_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED) &&
	62	.\" ! (_POSIX_C_SOURCE >= 200809L))
	63	.\" Before glibc 2.10:
	64	.\" _SVID_SOURCE \|\| _XOPEN_SOURCE >= 500 \|\|
	65	.\" (_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED)
	66	.SH DESCRIPTION
	67	The functions
	68	.BR qecvt (),
	69	.BR qfcvt (),
	70	and
	71	.BR qgcvt ()
	72	are identical to
	73	.BR ecvt (3),
	74	.BR fcvt (3),
	75	and
	76	.BR gcvt (3)
	77	respectively, except that they use a
	78	.I "long double"
	79	argument
	80	.IR number .
	81	See
	82	.BR ecvt (3)
	83	and
	84	.BR gcvt (3).
	85	.SH ATTRIBUTES
	86	For an explanation of the terms used in this section, see
	87	.BR attributes (7).
	88	.TS
	89	allbox;
	90	lb lb lb
	91	l l l.
	92	Interface Attribute Value
	93	T{
	94	.BR qecvt ()
	95	T} Thread safety MT-Unsafe race:qecvt
	96	T{
	97	.BR qfcvt ()
	98	T} Thread safety MT-Unsafe race:qfcvt
	99	T{
	100	.BR qgcvt ()
	101	T} Thread safety MT-Safe
	102	.TE
	103	.SH CONFORMING TO
	104	SVr4.
	105	Not seen in most common UNIX implementations,
	106	but occurs in SunOS.
	107	.\" Not supported by libc4 and libc5.
	108	Supported by glibc.
	109	.SH NOTES
	110	These functions are obsolete.
	111	Instead,
	112	.BR snprintf (3)
	113	is recommended.
	114	.SH SEE ALSO
	115	.BR ecvt (3),
	116	.BR ecvt_r (3),
	117	.BR gcvt (3),
	118	.BR sprintf (3)