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 3.22 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)