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-rw-r--r--src/emu/diimage.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/emu/diimage.h b/src/emu/diimage.h
index 49a9ff692ea..68fac1f8b9e 100644
--- a/src/emu/diimage.h
+++ b/src/emu/diimage.h
@@ -173,7 +173,7 @@ public:
void seterror(image_error_t err, const char *message);
void message(const char *format, ...) ATTR_PRINTF(2,3);
- bool exists() { return !m_image_name.empty(); }
+ bool exists() const { return !m_image_name.empty(); }
const char *filename() const { if (m_image_name.empty()) return nullptr; else return m_image_name.c_str(); }
const char *basename() const { if (m_basename.empty()) return nullptr; else return m_basename.c_str(); }
const char *basename_noext() const { if (m_basename_noext.empty()) return nullptr; else return m_basename_noext.c_str(); }