Add null pointer test to String destructor

jrowberg · aentinger · commit ed8745d14f89 · 2019-09-17T10:22:22.000+02:00
diff --git a/cores/arduino/WString.cpp b/cores/arduino/WString.cpp
@@ -121,7 +121,7 @@ String::String(double value, unsigned char decimalPlaces)
 
 String::~String()
 {
-	free(buffer);
+	if (buffer) free(buffer);
 }
 
 /*********************************************/

Original file line number	Diff line number	Diff line change
`@@ -121,7 +121,7 @@ String::String(double value, unsigned char decimalPlaces)`
`121`	`121`
`122`	`122`	`String::~String()`
`123`	`123`	`{`
`124`		`- free(buffer);`
	`124`	`+ if (buffer) free(buffer);`
`125`	`125`	`}`
`126`	`126`
`127`	`127`	`/*********************************************/`