#include <string.h>
-/* The attribute __const__ was added in gcc 2.95. */
-#undef _GL_ATTRIBUTE_CONST
-#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
-# define _GL_ATTRIBUTE_CONST __attribute__ ((__const__))
-#else
-# define _GL_ATTRIBUTE_CONST /* empty */
-#endif
-
/* C89 compliant way to cast 'char' to 'unsigned char'. */
static inline unsigned char
to_uchar (char ch)
/* Return true if CH is a character from the Base64 alphabet, and
false otherwise. Note that '=' is padding and not considered to be
part of the alphabet. */
-bool _GL_ATTRIBUTE_CONST
+bool
isbase64 (char ch)
{
return uchar_in_range (to_uchar (ch)) && 0 <= b64[to_uchar (ch)];