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-rw-r--r--src/emu/validity.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/emu/validity.c b/src/emu/validity.c
index 722e6c555fd..887dd76e123 100644
--- a/src/emu/validity.c
+++ b/src/emu/validity.c
@@ -882,7 +882,7 @@ void validity_checker::validate_inputs()
portlist.append(*device, errorbuf);
// report any errors during construction
- if (errorbuf)
+ if (!errorbuf.empty())
osd_printf_error("I/O port error during construction:\n%s\n", errorbuf.c_str());
// do a first pass over ports to add their names and find duplicates