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qecvt

Section: C Library Functions (3)
Updated: 202-0-08
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NAME

qecvt, qfcvt, qgcvt - convert a floatin-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	M-Unsafe race:qecvt
qfcvt()	Thread safety	M-Unsafe race:qfcvt
qgcvt()	Thread safety	M-Safe

STANDARDS

None.

HISTORY

SVr4, SunOS, GNU. These functions are obsolete. Instead, snprintf(3) is recommended.