diff options
| -rw-r--r-- | cores/arduino/WString.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/cores/arduino/WString.cpp b/cores/arduino/WString.cpp index ad8d828..3e81331 100644 --- a/cores/arduino/WString.cpp +++ b/cores/arduino/WString.cpp @@ -593,7 +593,7 @@ void String::replace(const String& find, const String& replace) if (size == len) return; if (size > capacity && !changeBuffer(size)) return; // XXX: tell user! int index = len - 1; - while ((index = lastIndexOf(find, index)) >= 0) { + while (index >= 0 && (index = lastIndexOf(find, index)) >= 0) { readFrom = buffer + index + find.len; memmove(readFrom + diff, readFrom, len - (readFrom - buffer)); len += diff; |