/* Normalization forms (composition and decomposition) of Unicode strings.
- Copyright (C) 2001-2002, 2009-2011 Free Software Foundation, Inc.
+ Copyright (C) 2001-2002, 2009-2013 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2009.
This program is free software: you can redistribute it and/or modify it
Not all decompositions can be recombined using this function. See the
Unicode file CompositionExclusions.txt for details. */
extern ucs4_t
- uc_composition (ucs4_t uc1, ucs4_t uc2);
+ uc_composition (ucs4_t uc1, ucs4_t uc2)
+ _UC_ATTRIBUTE_CONST;
/* An object of type uninorm_t denotes a Unicode normalization form. */
/* Return the decomposing variant of a normalization form.
This maps NFC,NFD -> NFD and NFKC,NFKD -> NFKD. */
-extern uninorm_t uninorm_decomposing_form (uninorm_t nf);
+extern uninorm_t
+ uninorm_decomposing_form (uninorm_t nf)
+ _UC_ATTRIBUTE_PURE;
/* Return the specified normalization form of a string. */