gcvt man page on ElementaryOS

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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():
	   Since glibc 2.12:
	       _SVID_SOURCE ||
		   (_XOPEN_SOURCE >= 500 ||
		       _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED) &&
		   !(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
	   Before glibc 2.12:
	       _SVID_SOURCE || _XOPEN_SOURCE >= 500 || _XOPEN_SOURCE &&
	       _XOPEN_SOURCE_EXTENDED

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 3.54 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/.

				  2010-09-20			       GCVT(3)
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