diff --git a/stim/biomodels/network.h b/stim/biomodels/network.h
index aeeead0..bd799a0 100644
--- a/stim/biomodels/network.h
+++ b/stim/biomodels/network.h
@@ -79,7 +79,7 @@ class network{
 
 		}
 */
-		edge(std::vector<stim::vec3<T> p, std::vector<T> s)
+		edge(std::vector<stim::vec3<T> > p, std::vector<T> s)
 			: cylinder<T>(p,s)
 		{
 		}
@@ -599,7 +599,7 @@ public:
 		int dims[2];		///number of vertex, number of edges
 		readHeader(filename, &dims[0]);		//read header
 		std::ifstream file;
-		file.open(filename, std::ios::in | std::ios::binary);		///skip header information.
+		file.open(filename.c_str(), std::ios::in | std::ios::binary);		///skip header information.
 		file.seekg(14+58+4+4, file.beg);
 		vertex v;
 		for(int i = 0; i < dims[0]; i++)		///for every vertex, read vertex, add to network.
@@ -626,7 +626,7 @@ public:
 	{
 		writeHeader(filename);
 		std::ofstream file;
-		file.open(filename, std::ios::out | std::ios::binary | std::ios::app);	///since we have written the header we are not appending.
+		file.open(filename.c_str(), std::ios::out | std::ios::binary | std::ios::app);	///since we have written the header we are not appending.
 		for(int i = 0; i < V.size(); i++)	///look through the Vertices and write each one.
 		{
 //			std::cout << i << " " << V[i].str() << std::endl;
@@ -650,7 +650,7 @@ public:
 		int hNumVertices = V.size();		///int byte header storing the number of vertices in the file
 		int hNumEdges = E.size();		///int byte header storing the number of edges.
 		std::ofstream file;
-		file.open(filename, std::ios::out | std::ios::binary);
+		file.open(filename.c_str(), std::ios::out | std::ios::binary);
 		std::cout << hNumVertices << " " << hNumEdges << std::endl;
 		file.write(reinterpret_cast<const char*>(&magicString.c_str()[0]), 14);	//write the file id
 		file.write(reinterpret_cast<const char*>(&desc.c_str()[0]), 58);	//write the description
@@ -670,7 +670,7 @@ public:
 		int hNumVertices;		///#vert
 		int hNumEdges;			///#edges
 		std::ifstream file;		////create stream
-		file.open(filename, std::ios::in | std::ios::binary);
+		file.open(filename.c_str(), std::ios::in | std::ios::binary);
 		file.read(reinterpret_cast<char*>(&magicString[0]), 14);	///read the file id.
 		file.read(reinterpret_cast<char*>(&desc[0]), 58);		///read the description
 		file.read(reinterpret_cast<char*>(&hNumVertices), sizeof(int));	///read the number of vertices
--
libgit2 0.21.4