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GCVT(3)                    Linux Programmer's Manual                   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 signifi-
       cant 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  specifica-
       tion  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 3.25 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/.

                                  2009-03-15                           GCVT(3)
 

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