table of contents
qecvt(3) | Library Functions Manual | qecvt(3) |
NAME¶
qecvt, qfcvt, qgcvt - convert a floating-point number to a string
LIBRARY¶
Standard C library (libc, -lc)
SYNOPSIS¶
#include <stdlib.h>
[[deprecated]] char *qecvt(long double number, int ndigits, int *restrict decpt, int *restrict sign); [[deprecated]] char *qfcvt(long double number, int ndigits, int *restrict decpt, int *restrict sign); [[deprecated]] char *qgcvt(long double number, int ndigit, char *buf);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
qecvt(), qfcvt(), qgcvt():
Since glibc 2.19:
_DEFAULT_SOURCE
In glibc up to and including 2.19:
_SVID_SOURCE
DESCRIPTION¶
The functions qecvt(), qfcvt(), and qgcvt() are identical to ecvt(3), fcvt(3), and gcvt(3) respectively, except that they use a long double argument number. See ecvt(3) and gcvt(3).
ATTRIBUTES¶
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
qecvt () | Thread safety | MT-Unsafe race:qecvt |
qfcvt () | Thread safety | MT-Unsafe race:qfcvt |
qgcvt () | Thread safety | MT-Safe |
STANDARDS¶
None.
HISTORY¶
SVr4, SunOS, GNU.
These functions are obsolete. Instead, snprintf(3) is recommended.
SEE ALSO¶
2024-05-02 | Linux man-pages 6.9.1 |