gcvt(3)
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
COLOPHON
- This page is part of release 3.25 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/.