error messages in cli

chistopher · May 9, 2019 · bd53c6f · bd53c6f
1 parent 6418b6b
commit bd53c6f
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Showing 3 changed files with 6 additions and 1 deletion.
diff --git a/source/cli/gengirg/main.cpp b/source/cli/gengirg/main.cpp
@@ -5,13 +5,13 @@
 #include <string>
 #include <cstring>
 #include <fstream>
+#include <algorithm>
 
 #include <omp.h>
 
 #include <girgs/girgs-version.h>
 #include <girgs/Generator.h>
 #include <girgs/BitManipulation.h>
-#include <algorithm>
 
 
 using namespace std;
@@ -152,6 +152,7 @@ int main(int argc, char* argv[]) {
         cout << "writing edge list (.txt) ...\t" << flush;
         auto t6 = high_resolution_clock::now();
         ofstream f{file+".txt"};
+        if(!f.is_open()) throw std::runtime_error{"Error: failed to open file \"" + file + ".txt\""};
         f << n << ' ' << edges.size() << "\n\n";
         for(auto& each : edges)
             f << each.first << ' ' << each.second << '\n';

diff --git a/source/cli/genhrg/main.cpp b/source/cli/genhrg/main.cpp
@@ -138,6 +138,7 @@ int main(int argc, char* argv[]) {
         cout << "writing edge list (.txt) ...\t" << flush;
         auto t6 = high_resolution_clock::now();
         ofstream f{file+".txt"};
+        if(!f.is_open()) throw std::runtime_error{"Error: failed to open file \"" + file + ".txt\""};
         f << n << ' ' << edges.size() << "\n\n";
         for(auto& each : edges)
             f << each.first << ' ' << each.second << '\n';
@@ -149,6 +150,7 @@ int main(int argc, char* argv[]) {
         cout << "writing coordinates (.hyp) ...\t" << flush;
         auto t6 = high_resolution_clock::now();
         ofstream f{file+".hyp"};
+        if(!f.is_open()) throw std::runtime_error{"Error: failed to open file \"" + file + ".hyp\""};
         f << std::fixed << std::setprecision(6);
         for(auto i{0u}; i<n; ++i)
             f << radii[i]  << ' ' << angles[i] << '\n';

diff --git a/source/girgs/source/Generator.cpp b/source/girgs/source/Generator.cpp
@@ -122,6 +122,8 @@ void saveDot(const std::vector<double> &weights, const std::vector<std::vector<d
              const std::vector<std::pair<int, int>> &graph, const std::string &file) {
 
     std::ofstream f{file};
+    if(!f.is_open())
+        throw std::runtime_error{"Error: failed to open file \"" + file + '\"'};
     f << "graph girg {\n\toverlap=scale;\n\n";
     f << std::fixed;
     for (int i = 0; i < weights.size(); ++i) {