to the same values in VALLIST). */
ptrdiff_t argmatch (char const *arg, char const *const *arglist,
- char const *vallist, size_t valsize);
+ char const *vallist, size_t valsize) _GL_ATTRIBUTE_PURE;
# define ARGMATCH(Arg, Arglist, Vallist) \
argmatch (Arg, Arglist, (char const *) (Vallist), sizeof *(Vallist))
-/* Same as argmatch, but upon failure, reports a explanation on the
- failure, and exits using the function EXIT_FN. */
+/* Same as argmatch, but upon failure, report an explanation of the
+ failure, and exit using the function EXIT_FN. */
ptrdiff_t __xargmatch_internal (char const *context,
char const *arg, char const *const *arglist,
char const *argmatch_to_argument (char const *value,
char const *const *arglist,
- char const *vallist, size_t valsize);
+ char const *vallist, size_t valsize)
+ _GL_ATTRIBUTE_PURE;
# define ARGMATCH_TO_ARGUMENT(Value, Arglist, Vallist) \
argmatch_to_argument (Value, Arglist, \