--- /dev/null
+++ Libc/Libc-391/stdlib/OpenBSD/gcvt.c
@@ -0,0 +1,99 @@
+/*	$OpenBSD: gcvt.c,v 1.5 2003/06/17 21:56:24 millert Exp $	*/
+
+/*
+ * Copyright (c) 2002, 2003 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F39502-99-1-0512.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char rcsid[] = "$OpenBSD: gcvt.c,v 1.5 2003/06/17 21:56:24 millert Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+extern char *__dtoa(double, int, int, int *, int *, char **);
+
+char *
+gcvt(double value, int ndigit, char *buf)
+{
+	char *digits, *dst, *src;
+	int i, decpt, sign;
+
+	if (ndigit == 0) {
+		buf[0] = '\0';
+		return (buf);
+	}
+
+	digits = __dtoa(value, 2, ndigit, &decpt, &sign, NULL);
+	if (decpt == 9999) {
+		/* Infinity or NaN, assume buffer is at least ndigit long. */
+		strlcpy(buf, digits, ndigit + 1);
+		return (buf);
+	}
+
+	dst = buf;
+	if (sign)
+		*dst++ = '-';
+
+	if (decpt < 0 || decpt > ndigit) {
+		/* exponential format */
+		if (--decpt < 0) {
+			sign = 1;
+			decpt = -decpt;
+		} else
+			sign = 0;
+		for (src = digits; *src != '\0'; )
+			*dst++ = *src++;
+		*dst++ = 'e';
+		if (sign)
+			*dst++ = '-';
+		else
+			*dst++ = '+';
+		if (decpt < 10) {
+			*dst++ = '0';
+			*dst++ = '0' + decpt;
+			*dst = '\0';
+		} else {
+			/* XXX - optimize */
+			for (sign = decpt, i = 0; (sign /= 10) != 0; i++)
+				sign /= 10;
+			while (decpt != 0) {
+				dst[i--] = '0' + decpt % 10;
+				decpt /= 10;
+			}
+		}
+	} else {
+		/* standard format */
+		for (i = 0, src = digits; i < decpt; i++) {
+			if (*src != '\0')
+				*dst++ = *src++;
+			else
+				*dst++ = '0';
+		}
+		if (*src != '\0') {
+			*dst++ = '.';		/* XXX - locale-specific (LC_NUMERIC) */
+			for (i = decpt; digits[i] != '\0'; i++) {
+				*dst++ = digits[i];
+			}
+		}
+		*dst = '\0';
+	}
+	return (buf);
+}