Hi Jim,
> Once you've adjusted your patch to do the same for the
> new return path it adds, you're welcome to commit it.
Done.
> *ENDPTR is no longer guaranteed to be set.
Whee, well spotted. I missed this most probably because there was no
documentation nearby that would have reminded me of the full contract
of this function. So here is a proposed documentation, more detailed
than the one in doc/c-strtod.texi.
2009-01-23 Bruno Haible <br...@clisp.org>
* lib/c-strtod.h (c_strtod, c_strtold): Add specification.
--- lib/c-strtod.h.orig 2009-01-24 00:08:16.000000000 +0100
+++ lib/c-strtod.h 2009-01-24 00:07:51.000000000 +0100
@@ -1,2 +1,33 @@
-double c_strtod (char const *, char **);
-long double c_strtold (char const *, char **);
+/* Convert string to double, using the C locale.
+
+ Copyright (C) 2003-2004, 2009 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 <http://www.gnu.org/licenses/>. */
+
+/* Parse the initial portion of the string pointed to by NPTR as a floating-
+ point number (in decimal or hexadecimal notation), like in the C locale:
+ accepting only the ASCII digits '0'..'9', and only '.' as decimal point
+ character..
+ If ENDPTR is not NULL, set *ENDPTR to point to the first byte beyond the
+ parsed number or to NPTR if the string does not start with a parseable
+ number.
+ If successful, return the value as a double or 'long double', respectively,
+ and don't modify errno. In case of overflow, return ±HUGE_VAL or
+ ±HUGE_VALL, respectively, and set errno to ERANGE. In case of underflow,
+ return a value very near to 0 and set errno to ERANGE. If the string
+ does not start with the a number at all, return 0 (and recall that if
+ ENDPTR != NULL, *ENDPTR is set to NPTR). In case of other error, return 0
+ and set errno, for example to EINVAL or ENOMEM. */
+extern double c_strtod (char const *nptr, char **endptr);
+extern long double c_strtold (char const *nptr, char **endptr);
