qecvt(3)

QECVT(3)

Linux Programmer's Manual

QECVT(3)

NAME

qecvt, qfcvt, qgcvt - convert a floating-point number to a string

SYNOPSIS

#include <stdlib.h>

char *qecvt(long double number, int ndigits, int *restrict decpt,
            int *restrict sign);
char *qfcvt(long double number, int ndigits, int *restrict decpt,
            int *restrict sign);
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

CONFORMING TO

SVr4. Not seen in most common UNIX implementations, but occurs in SunOS. Supported by glibc.

NOTES

These functions are obsolete. Instead, snprintf(3) is recommended.