| NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | CONFORMING TO | NOTES | SEE ALSO | COLOPHON | The Linux Programming Interface |
ECVT_R(3) Linux Programmer's Manual ECVT_R(3)
ecvt_r, fcvt_r, qecvt_r, qfcvt_r - convert a floating-point number to a string
#include <stdlib.h>
int ecvt_r(double number, int ndigits, int *decpt,
int *sign, char *buf, size_t len);
int fcvt_r(double number, int ndigits, int *decpt,
int *sign, char *buf, size_t len);
int qecvt_r(long double number, int ndigits, int *decpt,
int *sign, char *buf, size_t len);
int qfcvt_r(long double number, int ndigits, int *decpt,
int *sign, char *buf, size_t len);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
ecvt_r(), fcvt_r(), qecvt_r(), qfcvt_r():
_SVID_SOURCE || _BSD_SOURCE || _XOPEN_SOURCE >= 500
The functions ecvt_r(), fcvt_r(), qecvt_r() and qfcvt_r() are identical to
ecvt(3), fcvt(3), qecvt(3) and qfcvt(3), respectively, except that they do not
return their result in a static buffer, but instead use the supplied buf of
size len. See ecvt(3) and qecvt(3).
These functions return 0 on success, and -1 otherwise.
These functions are GNU extensions.
These functions are obsolete. Instead, sprintf(3) is recommended.
ecvt(3), qecvt(3), sprintf(3)
This page is part of release 3.32 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can be found
at http://www.kernel.org/doc/man-pages/.
GNU 2007-07-26 ECVT_R(3)
HTML rendering created 2010-12-03 by Michael Kerrisk, author of The Linux Programming Interface