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1 | .\" Copyright (C) 2002 Andries Brouwer <aeb@cwi.nl> |
2 | .\" | |
3 | .\" Permission is granted to make and distribute verbatim copies of this | |
4 | .\" manual provided the copyright notice and this permission notice are | |
5 | .\" preserved on all copies. | |
6 | .\" | |
7 | .\" Permission is granted to copy and distribute modified versions of this | |
8 | .\" manual under the conditions for verbatim copying, provided that the | |
9 | .\" entire resulting derived work is distributed under the terms of a | |
10 | .\" permission notice identical to this one. | |
c13182ef | 11 | .\" |
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12 | .\" Since the Linux kernel and libraries are constantly changing, this |
13 | .\" manual page may be incorrect or out-of-date. The author(s) assume no | |
14 | .\" responsibility for errors or omissions, or for damages resulting from | |
15 | .\" the use of the information contained herein. The author(s) may not | |
16 | .\" have taken the same level of care in the production of this manual, | |
17 | .\" which is licensed free of charge, as they might when working | |
18 | .\" professionally. | |
c13182ef | 19 | .\" |
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20 | .\" Formatted or processed versions of this manual, if unaccompanied by |
21 | .\" the source, must acknowledge the copyright and authors of this work. | |
22 | .\" | |
23 | .\" This replaces an earlier man page written by Walter Harms | |
24 | .\" <walter.harms@informatik.uni-oldenburg.de>. | |
25 | .\" | |
26 | .\" Corrected return types; from Fabian; 2004-10-05 | |
27 | .\" | |
cc4615cc | 28 | .TH ECVT_R 3 2007-07-26 "GNU" "Linux Programmer's Manual" |
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29 | .SH NAME |
30 | ecvt_r, fcvt_r, qecvt_r, qfcvt_r \- convert a floating-point number to a string | |
31 | .SH SYNOPSIS | |
b9f02710 | 32 | .nf |
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33 | .B #include <stdlib.h> |
34 | .sp | |
35 | .BI "int ecvt_r(double " number ", int " ndigits ", int *" decpt , | |
b9f02710 | 36 | .BI " int *" sign ", char *" buf ", size_t " len ); |
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37 | .sp |
38 | .BI "int fcvt_r(double " number ", int " ndigits ", int *" decpt , | |
b9f02710 | 39 | .BI " int *" sign ", char *" buf ", size_t " len ); |
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40 | .sp |
41 | .BI "int qecvt_r(long double " number ", int " ndigits ", int *" decpt , | |
b9f02710 | 42 | .BI " int *" sign ", char *" buf ", size_t " len ); |
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43 | .sp |
44 | .BI "int qfcvt_r(long double " number ", int " ndigits ", int *" decpt , | |
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45 | .BI " int *" sign ", char *" buf ", size_t " len ); |
46 | .fi | |
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47 | .sp |
48 | .in -4n | |
49 | Feature Test Macro Requirements for glibc (see | |
50 | .BR feature_test_macros (7)): | |
51 | .in | |
52 | .sp | |
53 | .BR ecvt_r (), | |
54 | .BR fcvt_r (), | |
55 | .BR qecvt_r (), | |
56 | .BR qfcvt_r (): | |
57 | .br | |
58 | _SVID_SOURCE || _BSD_SOURCE || _XOPEN_SOURCE\ >=\ 500 | |
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59 | .SH DESCRIPTION |
60 | The functions | |
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61 | .BR ecvt_r (), |
62 | .BR fcvt_r (), | |
63 | .BR qecvt_r () | |
fea681da | 64 | and |
e511ffb6 | 65 | .BR qfcvt_r () |
fea681da | 66 | are identical to |
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67 | .BR ecvt (), |
68 | .BR fcvt (), | |
69 | .BR qecvt () | |
fea681da | 70 | and |
f19a0f03 | 71 | .BR qfcvt (), |
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72 | respectively, except that they do not return their result in a static |
73 | buffer, but instead use the supplied | |
74 | .I buf | |
75 | of size | |
76 | .IR len . | |
77 | See | |
78 | .BR ecvt (3) | |
79 | and | |
80 | .BR qecvt (3). | |
81 | .SH "RETURN VALUE" | |
82 | These functions return 0 on success, and \-1 otherwise. | |
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83 | .SH "CONFORMING TO" |
84 | These functions are GNU extensions. | |
fea681da | 85 | .SH NOTES |
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86 | These functions are obsolete. |
87 | Instead, | |
fb186734 | 88 | .BR sprintf (3) |
fea681da | 89 | is recommended. |
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90 | .SH "SEE ALSO" |
91 | .BR ecvt (3), | |
92 | .BR qecvt (3), | |
93 | .BR sprintf (3) |