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 5.05 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/.