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   qgcvt    ( 3 )

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Имя (Name)

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

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Синопсис (Synopsis)

#include <stdlib.h>

       char *qecvt(long double number, int ndigits, int *restrict decpt,
                   int *restrict sign);
       char *qfcvt(long double number, int ndigits, int *restrict decpt,
                   int *restrict sign);
       char *qgcvt(long double number, int ndigit, char *buf);

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

       qecvt(), qfcvt(), qgcvt():
           Since glibc 2.19:
               _DEFAULT_SOURCE
           In glibc up to and including 2.19:
               _SVID_SOURCE

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Описание (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).

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Атрибуты (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              │
       └─────────────────────────┴───────────────┴──────────────────────┘

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Стандарты (Conforming to)

SVr4.  Not seen in most common UNIX implementations, but occurs
       in SunOS.  Supported by glibc.

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Примечание (Note)

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

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Смотри также (See also)

ecvt(3), ecvt_r(3), gcvt(3), sprintf(3)

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