cocos2d::StringUtils
cocos2d::StringUtils::toString method can generate std::string value from variety of values
int i= 100;
std::string int_string= cocos2d::StringUtils::toString(i);
CCLOG("%s", int_string.c_str());
float j= 123.4f;
std::string float_string= cocos2d::StringUtils::toString(j);
CCLOG("%s", float_string.c_str());
cocos2d::StringUtils::format method can generate the std::string value using sprintf format.