Changed ColourTo to assert if asked to style backwards.

In release builds this is ignored instead.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/DocumentAccessor.cxx b/src/DocumentAccessor.cxx
index f3c36db32..e764bfeac 100644
--- a/src/DocumentAccessor.cxx
+++ b/src/DocumentAccessor.cxx
@@ -105,8 +105,9 @@ void DocumentAccessor::StartSegment(unsigned int pos) {
 void DocumentAccessor::ColourTo(unsigned int pos, int chAttr) {
 	// Only perform styling if non empty range
 	if (pos != startSeg - 1) {
+		PLATFORM_ASSERT(pos >= startSeg);
 		if (pos < startSeg) {
-			Platform::DebugPrintf("Bad colour positions %d - %d\n", startSeg, pos);
+			return;
 		}
 
 		if (validLen + (pos - startSeg + 1) >= bufferSize)