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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 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 3.22 of the Linux man-pages project.  A description of the project, and informa-
       tion about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



                                  2009-03-15                           GCVT(3)