/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│ │vi: set net ft=c ts=8 sts=2 sw=2 fenc=utf-8 :vi│ ╞══════════════════════════════════════════════════════════════════════════════╡ │ Copyright 2020 Justine Alexandra Roberts Tunney │ │ │ │ This program is free software; you can redistribute it and/or modify │ │ it under the terms of the GNU General Public License as published by │ │ the Free Software Foundation; version 2 of the License. │ │ │ │ This program is distributed in the hope that it will be useful, but │ │ WITHOUT ANY WARRANTY; without even the implied warranty of │ │ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │ │ General Public License for more details. │ │ │ │ You should have received a copy of the GNU General Public License │ │ along with this program; if not, write to the Free Software │ │ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │ │ 02110-1301 USA │ ╚─────────────────────────────────────────────────────────────────────────────*/ #include "libc/fmt/fmt.h" #include "libc/limits.h" #include "libc/stdio/stdio.h" #include "libc/sysv/errfuns.h" struct state { FILE *f; int n; }; static int vfprintfputchar(int c, struct state *st) { st->n++; return fputc(c, st->f); } int(vfprintf)(FILE *f, const char *fmt, va_list va) { struct state st[1] = {{f, 0}}; if (palandprintf(vfprintfputchar, st, fmt, va) != -1) { return st->n; } else { return -1; } }