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



NAME
       qecvt, qfcvt, qgcvt - convert a floating-point number to a string

SYNOPSIS
       #include <stdlib.h>

       char *qecvt(long double number, int ndigits, int *decpt, int *sign);

       char *qfcvt(long double number, int ndigits, int *decpt, int *sign);

       char *qgcvt(long double number, int ndigit, char *buf);

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

       qecvt(), qfcvt(), qgcvt(): _SVID_SOURCE

DESCRIPTION
       The  functions  qecvt(), qfcvt(), and qgcvt() are identical to ecvt(3),
       fcvt(3), and gcvt(3) respectively, except that they use a  long  double
       argument number.  See ecvt(3) and gcvt(3).

ATTRIBUTES
       For   an   explanation   of   the  terms  used  in  this  section,  see
       attributes(7).

       +----------+---------------+----------------------+
       |Interface | Attribute     | Value                |
       +----------+---------------+----------------------+
       |qecvt()   | Thread safety | MT-Unsafe race:qecvt |
       +----------+---------------+----------------------+
       |qfcvt()   | Thread safety | MT-Unsafe race:qfcvt |
       +----------+---------------+----------------------+
       |qgcvt()   | Thread safety | MT-Safe              |
       +----------+---------------+----------------------+
CONFORMING TO
       SVr4.  Not seen in most common  UNIX  implementations,  but  occurs  in
       SunOS.  Supported by glibc.

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

SEE ALSO
       ecvt(3), ecvt_r(3), gcvt(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                          QECVT(3)