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NAME

       ecvt_r, fcvt_r, qecvt_r, qfcvt_r - convert a floating-point number to a string

SYNOPSIS

       #include <stdlib.h>

       int ecvt_r(double number, int ndigits, int *decpt,
                  int *sign, char *buf, size_t len);

       int fcvt_r(double number, int ndigits, int *decpt,
                  int *sign, char *buf, size_t len);

       int qecvt_r(long double number, int ndigits, int *decpt,
                  int *sign, char *buf, size_t len);

       int qfcvt_r(long double number, int ndigits, int *decpt,
                  int *sign, char *buf, size_t len);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       ecvt_r(), fcvt_r(), qecvt_r(), qfcvt_r():
           _SVID_SOURCE || _BSD_SOURCE || _XOPEN_SOURCE >= 500

DESCRIPTION

       The  functions  ecvt_r(),  fcvt_r(),  qecvt_r()  and  qfcvt_r()  are identical to ecvt(3),
       fcvt(3), qecvt(3) and qfcvt(3), respectively, except that they do not return their  result
       in  a  static  buffer,  but  instead  use  the  supplied buf of size len.  See ecvt(3) and
       qecvt(3).

RETURN VALUE

       These functions return 0 on success, and -1 otherwise.

CONFORMING TO

       These functions are GNU extensions.

NOTES

       These functions are obsolete.  Instead, sprintf(3) is recommended.

SEE ALSO

       ecvt(3), qecvt(3), sprintf(3)

COLOPHON

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       project,  and information about reporting bugs, can be found at http://man7.org/linux/man-
       pages/.