GCVT
Section: Linux Programmer's Manual (3)
Updated: 2014-05-28
Index
Return to Main Contents
NAME
gcvt - convert a floating-point number to a string
SYNOPSIS
#include <stdlib.h>
char *gcvt(double number, int ndigit, char *buf);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
gcvt():
-
- Since glibc 2.12:
-
_SVID_SOURCE ||
(_XOPEN_SOURCE >= 500 ||
_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED) &&
!(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
- Before glibc 2.12:
-
_SVID_SOURCE || _XOPEN_SOURCE >= 500 ||
_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED
DESCRIPTION
The
gcvt()
function converts number to a minimal length null-terminated
ASCII string and stores the result in buf.
It produces ndigit significant digits in either
printf(3)
F format or E format.
RETURN VALUE
The
gcvt()
function returns the address of the string pointed to
by buf.
CONFORMING TO
Marked as LEGACY in POSIX.1-2001.
POSIX.1-2008 removes the specification of
gcvt(),
recommending the use of
sprintf(3)
instead (though
snprintf(3)
may be preferable).
SEE ALSO
ecvt(3),
fcvt(3),
sprintf(3)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- CONFORMING TO
-
- SEE ALSO
-
This document was created by
man2html,
using the manual pages.
Time: 02:55:10 GMT, September 18, 2014