Function StrReplaceAll

codegen/code_utils.cpp:49–56

}

void StrReplaceAll(string *haystack, string needle, string s) {
    string::size_type pos = 0;
    while ((pos = haystack->find(needle, pos)) != string::npos) {
        haystack->erase(pos, needle.length());
        haystack->insert(pos, s);
        pos += s.length();
    }
}

void StrAppendFormat(string *result, const char *fmt, ...) {
    if (nullptr == fmt)