strfromd(3)                Library Functions Manual                strfromd(3)

<?><?><?><?><?><?><?><?><?><?><?><?>
       strfromd, strfromf, strfroml - <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?> <?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?> <?> <?><?><?><?><?><?>

<?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?> C (libc, -lc)

<?><?><?><?><?>
       #include <stdlib.h>

       int strfromd(char str[restrict .n], size_t n,
                    const char *restrict format, double fp);
       int strfromf(char str[restrict .n], size_t n,
                    const char *restrict format, float fp);
       int strfroml(char str[restrict .n], size_t n,
                    const char *restrict format, long double fp);

   <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
   <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?> glibc
   (<?><?>. feature_test_macros(7)):

       strfromd(), strfromf(), strfroml():
           __STDC_WANT_IEC_60559_BFP_EXT__

<?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?> <?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> fp <?>
       <?><?><?><?><?><?> <?><?><?><?><?><?><?><?> str <?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?> format. <?> str
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?><?> n
       <?><?><?><?><?><?><?><?>.

       The terminating null byte ('\0') is written if and only if n is
       sufficiently large, otherwise the written string is truncated at n
       characters.

       <?><?><?><?><?><?><?> strfromd(), strfromf() <?> strfroml()
       <?><?><?><?><?><?><?><?><?><?><?><?>

           snprintf(str, n, format, fp);

       <?><?> <?><?><?><?><?><?> <?><?><?><?><?><?> format.

   <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?><?><?><?><?><?>
       The format string must start with the character '%'.  This is followed
       by an optional precision which starts with the period character (.),
       followed by an optional decimal integer.  If no integer is specified
       after the period character, a precision of zero is used.  Finally, the
       format string should have one of the conversion specifiers a, A, e, E,
       f, F, g, or G.

       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>,
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?>. <?> <?><?><?><?><?> <?> <?><?><?><?>, <?>
       <?><?><?><?><?><?><?> <?><?> snprintf() <?><?><?><?><?><?>
       <?><?><?><?><?><?><?> <?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?>. <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?> snprintf(3).

       <?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?> <?> NaN
       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> C99:

              <?><?><?><?> fp <?><?><?><?><?> NaN, +NaN <?><?><?> -NaN <?>
              <?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
              f (<?><?><?> a, e, g), <?><?> <?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?> <<nan>>, <<nan>>
              <?><?><?> <<-nan>>, <?><?><?><?><?><?><?><?><?><?><?><?><?><?>.
              <?><?><?><?> <?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> F (<?><?><?> A, E,
              G), <?><?> <?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?> <<NAN>> <?><?><?>
              <<-NAN>>.

              <?><?><?><?> fp <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?>, <?><?> <?><?><?>
              <?><?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?> <?> [-]inf <?><?><?>
              [-]INF.

       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> format
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?>.

<?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       The strfromd(), strfromf(), and strfroml()  functions return the number
       of characters that would have been written in str if n had enough
       space, not counting the terminating null byte.  Thus, a return value of
       n or greater means that the output was truncated.

<?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?> attributes(7) <?>
       <?><?><?><?><?><?><?> POSIX Safety Concepts
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?> GNU C.

       +----------------------------+-------------------------------------------------------------------------------------------+--------------------------+
       |<?><?><?><?><?><?><?><?><?> | <?><?><?><?><?><?><?>                                                                     | <?><?><?><?><?><?><?><?> |
       +----------------------------+-------------------------------------------------------------------------------------------+--------------------------+
       |strfromd(), strfromf(),     | <?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?>                                  | MT-Safe locale           |
       |strfroml()                  |                                                                                           |                          |
       +                            +-------------------------------------------------------------------------------------------+--------------------------+
       |                            | Async-signal safety                                                                       | AS-Unsafe heap           |
       +                            +-------------------------------------------------------------------------------------------+--------------------------+
       |                            | <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> | AC-Unsafe mem            |
       +----------------------------+-------------------------------------------------------------------------------------------+--------------------------+
       <?><?><?><?><?><?><?><?><?>: <?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?><?>.

<?><?><?><?><?><?><?><?><?>
       ISO/IEC TS 18661-1.

<?><?><?><?><?><?>
       strfromd()
       strfromf()
       strfroml()
              glibc 2.25.

<?><?><?><?><?><?><?><?><?><?>
       These functions take account of the LC_NUMERIC category of the current
       locale.

<?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> 12.1 <?>
       <?><?><?><?><?> float <?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?>, <?><?><?><?><?><?> <<12.100000>>:

           #define __STDC_WANT_IEC_60559_BFP_EXT__
           #include <stdlib.h>
           int ssize = 10;
           char s[ssize];
           strfromf(s, ssize, "%f", 12.1);

       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> 12.3456 <?>
       <?><?><?><?><?> float <?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?> <?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?>, <?><?><?><?><?><?> <<12.35>>:

           #define __STDC_WANT_IEC_60559_BFP_EXT__
           #include <stdlib.h>
           int ssize = 10;
           char s[ssize];
           strfromf(s, ssize, "%.2f", 12.3456);

       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> 12.345e19
       <?> <?><?><?><?><?> double <?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?>, <?><?><?><?><?><?> <<1E+20>>:

           #define __STDC_WANT_IEC_60559_BFP_EXT__
           #include <stdlib.h>
           int ssize = 10;
           char s[ssize];
           strfromd(s, ssize, "%.E", 12.345e19);

<?><?><?><?><?><?><?><?> <?><?><?><?><?>
       atof(3), snprintf(3), strtod(3)

<?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?>(<?>) Alexander Golubev
       <fatzer2@gmail.com>, Azamat Hackimov <azamat.hackimov@gmail.com>,
       Hotellook, Nikita <zxcvbnm3230@mail.ru>, Spiros Georgaras
       <sng@hellug.gr>, Vladislav <ivladislavefimov@gmail.com>, Yuri Kozlov
       <yuray@komyakino.ru>, <?><?><?><?> <?><?><?><?><?><?>
       <pavia00@gmail.com> <?> Kirill Rekhov <krekhov.dev@gmail.com>

       <?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?>; <?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> GNU (GNU General Public License - GPL,
       <https://www.gnu.org/licenses/gpl-3.0.html> <?><?><?><?><?><?> 3
       <?><?><?> <?><?><?><?><?> <?><?><?><?><?><?><?>) <?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?>, <?><?> <?><?><?> <?><?><?><?><?>-<?><?><?><?>
       <?><?><?><?><?><?><?><?>.

       <?><?><?><?> <?><?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?>-<?><?><?><?> <?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?><?> <?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?>, <?><?><?><?><?><?><?><?><?><?>,
       <?><?><?><?><?><?><?><?> <?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>(<?><?>) <?><?> <?><?><?>(<?><?>)
       <?><?><?><?><?><?>(<?><?>) <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?> <?><?><?> <?><?> <?><?><?><?><?><?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>
       <<debian-l10n-russian@lists.debian.org>>.

<?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> Linux 6.9.1
                           15 <?><?><?><?> 2024 <?>.               strfromd(3)