Merge pull request #433 from felias-fogg/master

Speed up 'available' method by inserting unsigned int cast

Merge pull request #433 from felias-fogg/master
Speed up 'available' method by inserting unsigned int cast
6507dfef · Martino Facchin · GitHub · 44dc454b · 65e63bf3 · 6507dfef
Unverified Commit 6507dfef authored Nov 17, 2021 by Martino Facchin Committed by GitHub Nov 17, 2021
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libraries/SoftwareSerial/src/SoftwareSerial.cpp libraries/SoftwareSerial/src/SoftwareSerial.cpp +1 -1

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--- a/libraries/SoftwareSerial/src/SoftwareSerial.cpp
+++ b/libraries/SoftwareSerial/src/SoftwareSerial.cpp
@@ -409,7 +409,7 @@ int SoftwareSerial::available()
  if (!isListening())
    return 0;

-  return (_receive_buffer_tail + _SS_MAX_RX_BUFF - _receive_buffer_head) % _SS_MAX_RX_BUFF;
+  return ((unsigned int)(_receive_buffer_tail + _SS_MAX_RX_BUFF - _receive_buffer_head)) % _SS_MAX_RX_BUFF;
 }

 size_t SoftwareSerial::write(uint8_t b)