File: cstrcache.cpp

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#include <unordered_map>
#include <string>

#include "cstrcache.h"

using namespace std;

struct const_string_table {
	unordered_map<string, string> strings;
};

static struct const_string_table table;

const char *cstrcache_get(const char *str)
{
	if (!str || !*str)
		return "";

	auto &strings = table.strings;
	auto pair = strings.find(str);

	if (pair == strings.end()) {
		strings[str] = str;
		pair = strings.find(str);
	}

	return pair->second.c_str();
}