better handling of wrong filenames

coin-or · Sep 27, 2023 · 794fedc · 794fedc
1 parent 0e690a4
commit 794fedc
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/examples/Optimization/MISDP/CBF/misdp_cbf.cpp b/examples/Optimization/MISDP/CBF/misdp_cbf.cpp
@@ -94,6 +94,10 @@ int main(int argc, char * argv[]){
     m->add_hierarc=hierarc;
 
     auto g=CBF_read(fname.c_str(), m);
+    if(g.nodes.size()==0){
+        cerr << "graph with size 0\n";
+        return -1;
+    }
     m->print();
     DebugOn("Instance "<<fname<<endl);
 

diff --git a/examples/Optimization/MISDP/CBF/read_misdp.h b/examples/Optimization/MISDP/CBF/read_misdp.h
@@ -114,7 +114,8 @@ Net CBF_read(const char *file, shared_ptr<Model<double>>& m, bool add_3d) {
 
     pFile = FOPEN(file, "rt");
     if (!pFile) {
-        throw invalid_argument("cannot open misdp data file");
+        cerr <<"Cannot open misdp data file " << file << endl;
+        return g;
     }
     CBFdata data = { 0, };
     // Keyword OBJ should exist!