NAME
gcvt - convert a floating-point number to a string
SYNOPSIS
#include <stdlib.h>
char *gcvt(double number, size_t ndigit, char *buf);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
gcvt(): _SVID_SOURCE || _XOPEN_SOURCE >= 500
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)
COLOPHON
This page is part of release 3.24 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
2009-03-15