qecvt(3) — Linux manual pages

Linux manual pages	Section 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 *`decpt`,
	int *`sign)`;

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

`char *qgcvt(`	long double `number`,
	int `ndigit`,
	char *`buf)`;

Note

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
`qecvt`(), `qfcvt`(), `qgcvt`():
`_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.

COLOPHON

This page is part of release 4.07 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 https://www.kernel.org/doc/man−pages/.

  Copyright (C) 2002 Andries Brouwer <aebcwi.nl>

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This replaces an earlier man page written by Walter Harms
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