comparison src/fftw-3.3.3/api/mkprinter-file.c @ 10:37bf6b4a2645

Add FFTW3

+/*
+ * Copyright (c) 2003, 2007-11 Matteo Frigo
+ * Copyright (c) 2003, 2007-11 Massachusetts Institute of Technology
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 "api.h"
+#include <stdio.h>
+
+#define BUFSZ 256
+
+typedef struct {
+     printer super;
+     FILE *f;
+     char buf[BUFSZ];
+     char *bufw;
+} P;
+
+static void myflush(P *p)
+{
+     fwrite(p->buf, 1, p->bufw - p->buf, p->f);
+     p->bufw = p->buf;
+}
+
+static void myputchr(printer *p_, char c)
+{
+     P *p = (P *) p_;
+     if (p->bufw >= p->buf + BUFSZ)
+	  myflush(p);
+     *p->bufw++ = c;
+}
+
+static void mycleanup(printer *p_)
+{
+     P *p = (P *) p_;
+     myflush(p);
+}
+
+printer *X(mkprinter_file)(FILE *f)
+{
+     P *p = (P *) X(mkprinter)(sizeof(P), myputchr, mycleanup);
+     p->f = f;
+     p->bufw = p->buf;
+     return &p->super;
+}