1 files changed, 31 insertions, 0 deletions
diff --git a/lib/xstrtod.h b/lib/xstrtod.h
new file mode 100644
index 0000000..78beefa
--- /dev/null
+++ b/lib/xstrtod.h
@@ -0,0 +1,31 @@
+/* Error-checking interface to strtod-like functions.
+
+   Copyright (C) 1996, 1998, 2003-2004, 2006, 2009-2022 Free Software
+   Foundation, Inc.
+
+   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 3 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, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Jim Meyering.  */
+
+#ifndef XSTRTOD_H
+# define XSTRTOD_H 1
+
+# include <stdbool.h>
+
+bool xstrtod (const char *str, const char **ptr, double *result,
+              double (*convert) (char const *, char **));
+bool xstrtold (const char *str, const char **ptr, long double *result,
+               long double (*convert) (char const *, char **));
+
+#endif /* not XSTRTOD_H */