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man:ecvt_r

ECVT_R(3) Linux Programmer's Manual ECVT_R(3)

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():
         /* Glibc since 2.19: */ _DEFAULT_SOURCE
             || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE

DESCRIPTION

     The functions ecvt_r(), fcvt_r(), qecvt_r(), and qfcvt_r() are  identi-
     cal  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.

ATTRIBUTES

     For   an   explanation   of   the  terms  used  in  this  section,  see
     attributes(7).
     +---------------------+---------------+---------+
     |Interface            | Attribute     | Value   |
     +---------------------+---------------+---------+
     |ecvt_r(), fcvt_r(),  | Thread safety | MT-Safe |
     |qecvt_r(), qfcvt_r() |               |         |
     +---------------------+---------------+---------+

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

     This  page  is  part of release 4.16 of the Linux man-pages project.  A
     description of the project, information about reporting bugs,  and  the
     latest     version     of     this    page,    can    be    found    at
     https://www.kernel.org/doc/man-pages/.

GNU 2016-03-15 ECVT_R(3)

/data/webs/external/dokuwiki/data/pages/man/ecvt_r.txt · Last modified: 2019/05/17 09:47 by 127.0.0.1

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