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[Fix #22254] Put real storage behind PM_STRING_EMPTY #4228

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[Fix #22254] Put real storage behind PM_STRING_EMPTY #4228

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7 changes: 6 additions & 1 deletion include/prism/internal/stringy.h
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Original file line number Diff line number Diff line change
Expand Up @@ -3,11 +3,16 @@

#include "prism/stringy.h"

/*
* Backing storage for an empty string.
*/
static const uint8_t empty_source[] = "";

/*
* Defines an empty string. This is useful for initializing a string that will
* be filled in later.
*/
#define PM_STRING_EMPTY ((pm_string_t) { .type = PM_STRING_CONSTANT, .source = NULL, .length = 0 })
#define PM_STRING_EMPTY ((pm_string_t) { .type = PM_STRING_CONSTANT, .source = empty_source, .length = 0 })

/*
* Initialize a shared string that is based on initial input.
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