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locale-util: mark special_glyph() as _const_
_const_ means that the caller can assume that the function will return the same result every time (and will not modify global memory). special_glyph() meets this: even though it depends on global memory, that part of global memory is not expected to change. This allows the calls to special_glyph() to be optimized, even if -flto is not used.
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@ -273,7 +273,7 @@ out:
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const char *special_glyph(SpecialGlyph code) {
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static const char *draw_table[2][_SPECIAL_GLYPH_MAX] = {
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static const char* const draw_table[2][_SPECIAL_GLYPH_MAX] = {
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/* ASCII fallback */
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[false] = {
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[TREE_VERTICAL] = "| ",
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@ -67,7 +67,7 @@ typedef enum {
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_SPECIAL_GLYPH_MAX
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} SpecialGlyph;
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const char *special_glyph(SpecialGlyph code);
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const char *special_glyph(SpecialGlyph code) _const_;
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const char* locale_variable_to_string(LocaleVariable i) _const_;
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LocaleVariable locale_variable_from_string(const char *s) _pure_;
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