Issue 3313: Add the command \offset

[lilypond.git] / scm / c++.scm

diff --git a/scm/c++.scm b/scm/c++.scm
index 8f4986a257ba72fe1ef0cefba10f792062cb2c6f..a131e7f3428d95870bcc3ec05b1643fe7d899552 100644 (file)
--- a/scm/c++.scm
+++ b/scm/c++.scm
@@ -25,6 +25,10 @@
   (and (pair? x)
        (number? (car x)) (number? (cdr x))))
 
+(define-public (number-pair-list? x)
+  (and (list? x)
+       (every number-pair? x)))
+
 (define-public (fraction? x)
   (and (pair? x)
        (index? (car x)) (index? (cdr x))))