1 files changed, 73 insertions, 0 deletions
diff --git a/misc/efgcvt_r.c b/misc/efgcvt_r.c
new file mode 100644
index 0000000..fb0d591
--- /dev/null
+++ b/misc/efgcvt_r.c
@@ -0,0 +1,73 @@
+/* [efg]cvt -- compatibility functions for floating point formatting,
+   reentrent versions.
+Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <math.h>
+
+int
+fcvt_r (value, ndigit, decpt, sign, buf, len)
+     double value;
+     int ndigit, *decpt, *sign;
+     char *buf;
+     int len;
+{
+  int n, i;
+
+  if (buf == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  *sign = value < 0.0;
+  if (*sign)
+    value = - value;
+
+  n = snprintf (buf, len, "%.*f", ndigit, value);
+  if (n < 0)
+    return -1;
+
+  i = 0;
+  while (i < n && isdigit (buf[i]))
+    ++i;
+  *decpt = i;
+  do
+    ++i;
+  while (! isdigit (buf[i]));
+  memmove (&buf[i - *decpt], buf, n - (i - *decpt));
+
+  return 0;
+}
+
+int
+ecvt_r (value, ndigit, decpt, sign, buf, len)
+     double value;
+     int ndigit, *decpt, *sign;
+     char *buf;
+     int len;
+{
+  ndigit -= (int) floor (log10 (value));
+  if (ndigit < 0)
+    ndigit = 0;
+  return fcvt_r (value, ndigit, decpt, sign, buf, len);
+}