Replace C++ (in)equality checks with proper SCM syntax

[lilypond.git] / lily / ttf.cc

diff --git a/lily/ttf.cc b/lily/ttf.cc
index c46b9e9f75ed0343b0e3e4e1798cff2273444cb5..2af774e414c254c402241b9a0a4524ba0f54cec7 100644 (file)
--- a/lily/ttf.cc
+++ b/lily/ttf.cc
@@ -503,7 +503,7 @@ LY_DEFINE (ly_ttf_ps_name, "ly:ttf-ps-name",
   LY_ASSERT_TYPE (scm_is_string, ttf_file_name, 1);
 
   int i = 0;
-  if (idx != SCM_UNDEFINED)
+  if (!SCM_UNBNDP (idx))
     {
       LY_ASSERT_TYPE (scm_is_integer, idx, 2);
       i = scm_to_int (idx);
@@ -553,7 +553,7 @@ LY_DEFINE (ly_ttf_2_pfa, "ly:ttf->pfa",
   LY_ASSERT_TYPE (scm_is_string, ttf_file_name, 1);
 
   int i = 0;
-  if (idx != SCM_UNDEFINED)
+  if (!SCM_UNBNDP (idx))
     {
       LY_ASSERT_TYPE (scm_is_integer, idx, 2);
       i = scm_to_int (idx);