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path: root/Source/Diagnostics/FlushFormats/FlushFormatCheckpoint.cpp
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-rw-r--r--Source/Diagnostics/FlushFormats/FlushFormatCheckpoint.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/Source/Diagnostics/FlushFormats/FlushFormatCheckpoint.cpp b/Source/Diagnostics/FlushFormats/FlushFormatCheckpoint.cpp
index eb011f7fb..6608123bb 100644
--- a/Source/Diagnostics/FlushFormats/FlushFormatCheckpoint.cpp
+++ b/Source/Diagnostics/FlushFormats/FlushFormatCheckpoint.cpp
@@ -211,7 +211,7 @@ FlushFormatCheckpoint::WriteDMaps (const std::string& dir, int nlev) const
for (int lev = 0; lev < nlev; ++lev) {
std::string DMFileName = dir;
if (!DMFileName.empty() && DMFileName[DMFileName.size()-1] != '/') {DMFileName += '/';}
- DMFileName = amrex::Concatenate(DMFileName + "Level_", lev, 1);
+ DMFileName = amrex::Concatenate(DMFileName.append("Level_"), lev, 1);
DMFileName += "/DM";
std::ofstream DMFile;