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locale-util: mark special_glyph() as _const_

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_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.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2016-05-09 11:24:08 -04:00
parent 323b7dc903
commit dff4bf93d4
2 changed files with 2 additions and 2 deletions
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2
src/basic/locale-util.c
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@ -273,7 +273,7 @@ out:
const char *special_glyph(SpecialGlyph code) {
static const char *draw_table[2][_SPECIAL_GLYPH_MAX] = {
static const char* const draw_table[2][_SPECIAL_GLYPH_MAX] = {
/* ASCII fallback */
[false] = {
[TREE_VERTICAL] = "| ",

2
src/basic/locale-util.h
View file

@ -67,7 +67,7 @@ typedef enum {
_SPECIAL_GLYPH_MAX
} SpecialGlyph;
const char *special_glyph(SpecialGlyph code);
const char *special_glyph(SpecialGlyph code) _const_;
const char* locale_variable_to_string(LocaleVariable i) _const_;
LocaleVariable locale_variable_from_string(const char *s) _pure_;