From: Paul Morris <paulwmorris@gmail.com>
Date: Wed, 10 Jun 2015 03:45:40 +0000 (-0400)
Subject: Issue 4418/1 add boolean-or-number? predicate
X-Git-Tag: release/2.19.22-1~32
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=43ebcfb1b2d94e49cba66549083f4abcccfc7c07;p=lilypond.git

Issue 4418/1 add boolean-or-number? predicate
---

diff --git a/scm/c++.scm b/scm/c++.scm
index ba38d5a057..badac67e5c 100644
--- a/scm/c++.scm
+++ b/scm/c++.scm
@@ -54,6 +54,9 @@
   (and (pair? x)
        (ly:moment? (car x)) (ly:moment? (cdr x))))
 
+(define-public (boolean-or-number? x)
+  (or (boolean? x) (number? x)))
+
 (define-public (boolean-or-symbol? x)
   (or (boolean? x) (symbol? x)))