lib/fprintftime.h

   1 /* Generate time strings directly to the output.  */
   2
   3 /* Copyright (C) 2005, 2009-2024 Free Software Foundation, Inc.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation, either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  17
  18 #include <stdio.h>
  19 #include <time.h>
  20
  21 #ifdef __cplusplus
  22 extern "C" {
  23 #endif
  24
  25
  26 /* A cross between fprintf and nstrftime, that prints directly
  27    to the output stream, without the need for the potentially
  28    large buffer that nstrftime would require.
  29
  30    Output to stream FP the result of formatting (according to the
  31    nstrftime format string, FMT) the time data, *TM, and the ZONE
  32    and NANOSECONDS values.  */
  33 size_t fprintftime (FILE *fp, char const *fmt, struct tm const *tm,
  34                     timezone_t zone, int nanoseconds);
  35
  36
  37 #ifdef __cplusplus
  38 }
  39 #endif