fix CRT voice count sanity check

chinenual · Jun 17, 2024 · ac79d5e · ac79d5e
1 parent a2d271f
commit ac79d5e
Showing 1 changed file with 11 additions and 1 deletion.
diff --git a/data/crt.go b/data/crt.go
@@ -259,8 +259,18 @@ type crtCursor struct {
 	VoiceOffset   int64
 }
 
+func countVoices(vces []*VCE) (result int) {
+     	result = 0
+	for _, vce := range vces {
+		if vce != nil {
+			result += 1
+		}
+	}
+	return result
+}
+
 func WriteCrt(buf io.WriteSeeker, vces []*VCE) (err error) {
-	if len(vces) < 1 || len(vces) > 24 {
+	if countVoices(vces) < 1 || countVoices(vces) > 24 {
 		err = errors.Errorf("Must have at least 1 and no more than 24 voices")
 		return
 	}