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author Olivier Galibert <galibert@pobox.com>2017-06-10 11:49:12 +0200
committer Olivier Galibert <galibert@pobox.com>2017-06-10 11:49:12 +0200
commit1c5d2e9466c6b5592b311d9f7a22d693e6a2f0c4 (patch)
treed055352be9504e03a7f078d2699e6b4c007e0167
parent6975b237af5248e5dc260ca0477c480f64b3980e (diff)
Fix vas' problem, region_length() is expected to return 0 if the region doesn't exist, not crash (nw)
-rw-r--r--src/emu/validity.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/emu/validity.h b/src/emu/validity.h
index de599199b73..8460ee4a7c0 100644
--- a/src/emu/validity.h
+++ b/src/emu/validity.h
@@ -44,7 +44,7 @@ public:
// helpers for devices
void validate_tag(const char *tag);
- int region_length(const char *tag) { return m_region_map.find(tag)->second; }
+ int region_length(const char *tag) { auto i = m_region_map.find(tag); return i == m_region_map.end() ? 0 : i->second; }
// generic registry of already-checked stuff
bool already_checked(const char *string) { return !m_already_checked.insert(string).second; }