SIMPLE SOLUTIONS

ECVT_R(3) - man page online | library functions

Convert a floating-point number to a string.

Chapter
2015-03-02
ECVT_R(3)                           Linux Programmer's Manual                           ECVT_R(3)

NAME ecvt_r, fcvt_r, qecvt_r, qfcvt_r - convert a floating-point number to a string
SYNOPSIS #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
DESCRIPTION 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).
RETURN VALUE These functions return 0 on success, and -1 otherwise.
ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ┌─────────────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├─────────────────────┼───────────────┼─────────┤ │ecvt_r(), fcvt_r(), │ Thread safety │ MT-Safe │ │qecvt_r(), qfcvt_r() │ │ │ └─────────────────────┴───────────────┴─────────┘
CONFORMING TO These functions are GNU extensions.
NOTES These functions are obsolete. Instead, sprintf(3) is recommended.
SEE ALSO ecvt(3), qecvt(3), sprintf(3)
COLOPHON This page is part of release 4.04 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.
GNU 2015-03-02 ECVT_R(3)
This manual Reference Other manuals
ecvt_r(3) referred by ecvt(3) | qecvt(3)
refer to attributes(7) | ecvt(3) | feature_test_macros(7) | printf(3) | qecvt(3)