Name

gcvt — convert a floating-point number to a string

Synopsis

#include <stdlib.h>
char *gcvt( double   number,
  size_t   ndigit,
  char *  buf);
[Note] Note
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.

NOTES

This function is obsolete. Instead, sprintf(3) is recommended.

SEE ALSO

ecvt(3), fcvt(3), sprintf(3)

COLOPHON

This page is part of release 2.79 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/.


  Copyright 1993 David Metcalfe (davidprism.demon.co.uk)

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References consulted:
    Linux libc source code
    Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
    386BSD man pages
Modified Sat Jul 24 19:32:25 1993 by Rik Faith (faithcs.unc.edu)