stdio-common/Xprintf_buffer_putc_1.c

   1 /* Overflow write function for struct __*printf_buffer.  Generic version.
   2    Copyright (C) 2022-2023 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library 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 GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <assert.h>
  20
  21 void
  22 Xprintf (buffer_putc_1) (struct Xprintf_buffer *buf, CHAR_T ch)
  23 {
  24   if (__glibc_unlikely (Xprintf_buffer_has_failed (buf))
  25       || !Xprintf_buffer_flush (buf))
  26     return;
  27   assert (buf->write_ptr < buf->write_end);
  28   *buf->write_ptr++ = ch;
  29 }