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-rw-r--r--src/pathfinder/yapf/yapf_rail.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/pathfinder/yapf/yapf_rail.cpp b/src/pathfinder/yapf/yapf_rail.cpp
index dccee3686..d3f8e8aee 100644
--- a/src/pathfinder/yapf/yapf_rail.cpp
+++ b/src/pathfinder/yapf/yapf_rail.cpp
@@ -28,6 +28,8 @@ template <typename Tpf> void DumpState(Tpf &pf1, Tpf &pf2)
pf2.DumpBase(dmp2);
FILE *f1 = fopen("yapf1.txt", "wt");
FILE *f2 = fopen("yapf2.txt", "wt");
+ assert(f1 != NULL);
+ assert(f2 != NULL);
fwrite(dmp1.m_out.Data(), 1, dmp1.m_out.Size(), f1);
fwrite(dmp2.m_out.Data(), 1, dmp2.m_out.Size(), f2);
fclose(f1);