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It is strongly recommended to check the new allocated pointer is not null

Thomas COIN
2020-10-29 14:15:27 +01:00
parent 0eee68753c
commit 0d52695aa9
1 changed files with 6 additions and 1 deletions
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7
FAQ-#3.md

@@ -39,12 +39,17 @@ void setup() {
... ...
} }
void PixelCountChanged(uint16_t newCount) { bool PixelCountChanged(uint16_t newCount) {
if (strip != NULL) { if (strip != NULL) {
delete strip; // delete the previous dynamically created strip delete strip; // delete the previous dynamically created strip
} }
strip = new NeoPixelBus<NeoGrbFeature, Neo800KbpsMethod>(newCount, Pin); // and recreate with new count strip = new NeoPixelBus<NeoGrbFeature, Neo800KbpsMethod>(newCount, Pin); // and recreate with new count
if (strip == NULL) {
Serial.println("OUT OF MEMORY");
return false;
}
strip->Begin(); strip->Begin();
return true;
} }
void loop() { void loop() {