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-rw-r--r--misc/Makefile4
-rw-r--r--misc/efgcvt_r.c22
-rw-r--r--misc/tst-efgcvt.c34
3 files changed, 51 insertions, 9 deletions
diff --git a/misc/Makefile b/misc/Makefile
index 1dfde43f7e..6c120bab65 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
+# Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98 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
@@ -64,7 +64,7 @@ install-lib := libbsd-compat.a libg.a
non-lib.a := libbsd-compat.a
gpl2lgpl := error.c error.h
-tests := tst-dirname tst-tsearch tst-fdset
+tests := tst-dirname tst-tsearch tst-fdset tst-efgcvt
include ../Rules
diff --git a/misc/efgcvt_r.c b/misc/efgcvt_r.c
index 69caef01d7..2dd0c9f02a 100644
--- a/misc/efgcvt_r.c
+++ b/misc/efgcvt_r.c
@@ -1,5 +1,5 @@
/* Compatibility functions for floating point formatting, reentrant versions.
- Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1995, 1996, 1997, 1998 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
@@ -61,6 +61,17 @@ APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign, buf, len)
if (*sign)
value = -value;
}
+ else
+ /* Value is Inf or NaN. */
+ *sign = 0;
+
+ if (ndigit <= 0)
+ {
+ if (len > 0)
+ buf[0] = '\0';
+ *decpt = 0;
+ return 0;
+ }
n = snprintf (buf, len, "%.*" FLOAT_FMT_FLAG "f", ndigit, value);
if (n < 0)
@@ -72,11 +83,8 @@ APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign, buf, len)
*decpt = i;
if (i == 0)
- {
- /* Value is Inf or NaN. */
- *sign = 0;
- return 0;
- }
+ /* Value is Inf or NaN. */
+ return 0;
if (i < n)
{
@@ -84,7 +92,7 @@ APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign, buf, len)
++i;
while (i < n && !isdigit (buf[i]));
memmove (&buf[*decpt], &buf[i], n - i);
- buf[n - (i - *decpt)] = 0;
+ buf[n - (i - *decpt)] = '\0';
}
return 0;
diff --git a/misc/tst-efgcvt.c b/misc/tst-efgcvt.c
new file mode 100644
index 0000000000..537f6da8a6
--- /dev/null
+++ b/misc/tst-efgcvt.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 1998 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 <stdio.h>
+#include <stdlib.h>
+
+int
+main (void)
+{
+ int decpt, sign;
+ char *p;
+
+ p = ecvt (0.0, 0, &decpt, &sign);
+ printf ("p: \"%s\", decpt: %d, sign: %d\n", p, decpt, sign);
+ if (p[0] != '\0')
+ return 1;
+
+ return 0;
+}