35   int result = vsnprintf(space, sizeof(space), format, backup_ap);  in StringAppendV()  local
38   if (result < static_cast<int>(sizeof(space))) {  in StringAppendV()
39     if (result >= 0) {  in StringAppendV()
41       dst->append(space, result);  in StringAppendV()
45     if (result < 0) {  in StringAppendV()
53   int length = result + 1;  in StringAppendV()
58   result = vsnprintf(buf, length, format, backup_ap);  in StringAppendV()
61   if (result >= 0 && result < length) {  in StringAppendV()
63     dst->append(buf, result);  in StringAppendV()
71   std::string result;  in StringPrintf()  local
72   StringAppendV(&result, fmt, ap);  in StringPrintf()
74   return result;  in StringPrintf()