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

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       https://www.kernel.org/doc/man-pages/.

GNU                                                2016-03-15                                           QECVT(3)