Fix an invalid object handle dereference in the breakpoint code

livecodefraser · livecodefraser · commit dba0a51d02d0 · 2016-10-26T17:33:34.000+01:00
diff --git a/engine/src/debug.cpp b/engine/src/debug.cpp
@@ -380,7 +380,7 @@ void MCB_clearbreaks(MCObject *p_for_object)
 {
 	for(size_t n = 0; n < MCnbreakpoints; ++n)
     {
-		if (p_for_object == nil || MCbreakpoints[n].object == p_for_object)
+		if (p_for_object == nil || !MCbreakpoints[n].object || MCbreakpoints[n].object == p_for_object)
 		{
 			MCbreakpoints[n].Clear();
 		}

Original file line number	Diff line number	Diff line change
`@@ -380,7 +380,7 @@ void MCB_clearbreaks(MCObject *p_for_object)`
`380`	`380`	`{`
`381`	`381`	`for(size_t n = 0; n < MCnbreakpoints; ++n)`
`382`	`382`	`{`
`383`		`- if (p_for_object == nil \|\| MCbreakpoints[n].object == p_for_object)`
	`383`	`+ if (p_for_object == nil \|\| !MCbreakpoints[n].object \|\| MCbreakpoints[n].object == p_for_object)`
`384`	`384`	`{`
`385`	`385`	`MCbreakpoints[n].Clear();`
`386`	`386`	`}`