[ld2420] Eliminate substr() allocation in firmware version parsing (#11724)

2025-11-05 10:57:20 -06:00
parent 479f8dd85c
commit b7838671ae
1 changed files with 1 additions and 1 deletions
--- a/esphome/components/ld2420/ld2420.cpp
+++ b/esphome/components/ld2420/ld2420.cpp
@@ -174,7 +174,7 @@ static uint8_t calc_checksum(void *data, size_t size) {
 static int get_firmware_int(const char *version_string) {
  std::string version_str = version_string;
  if (version_str[0] == 'v') {
-    version_str = version_str.substr(1);
+    version_str.erase(0, 1);
  }
  version_str.erase(remove(version_str.begin(), version_str.end(), '.'), version_str.end());
  int version_integer = stoi(version_str);