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rewrite parseIntegerList with better performance (#19629)

This commit is contained in:
John 2019-04-22 09:51:23 +08:00 committed by minggo
parent fd792813d2
commit 22a43fbc83
1 changed files with 13 additions and 16 deletions
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29
cocos/2d/CCSpriteFrameCache.cpp
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@ -79,23 +79,20 @@ SpriteFrameCache::~SpriteFrameCache()
void SpriteFrameCache::parseIntegerList(const std::string &string, std::vector<int> &res)
{
std::string delim(" ");
size_t n = std::count(string.begin(), string.end(), ' ');
res.resize(n+1);
size_t start = 0U;
size_t end = string.find(delim);
int i=0;
while (end != std::string::npos)
{
res[i++] = atoi(string.substr(start, end - start).c_str());
start = end + delim.length();
end = string.find(delim, start);
}
res[i] = atoi(string.substr(start, end).c_str());
res.resize(n + 1);
const char *cStr = string.c_str();
char *endptr;
int i = 0;
do {
long int val = strtol(cStr, &endptr, 10);
if (endptr == cStr)
return;
res[i++] = static_cast<int>(val);
cStr = endptr;
} while (*endptr != '\0');
}
void SpriteFrameCache::initializePolygonInfo(const Size &textureSize,