From d86eed84560410b24130c50b2f20b8652dc72805 Mon Sep 17 00:00:00 2001
From: Giovanni Bussi <giovanni.bussi@gmail.com>
Date: Wed, 9 Oct 2013 11:39:21 +0200
Subject: [PATCH] Addresses #40
It just prints a meaningful error.
---
src/cltools/SimpleMD.cpp | 8 ++++++++
src/core/CLTool.cpp | 8 +++++++-
2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/src/cltools/SimpleMD.cpp b/src/cltools/SimpleMD.cpp
index 62fb7f980..224134656 100644
--- a/src/cltools/SimpleMD.cpp
+++ b/src/cltools/SimpleMD.cpp
@@ -190,6 +190,10 @@ read_input(double& temperature,
void read_natoms(const string & inputfile,int & natoms){
// read the number of atoms in file "input.xyz"
FILE* fp=fopen(inputfile.c_str(),"r");
+ if(!fp){
+ fprintf(stderr,"ERROR: file %s not found\n",inputfile.c_str());
+ exit(1);
+ }
fscanf(fp,"%1000d",&natoms);
fclose(fp);
}
@@ -198,6 +202,10 @@ void read_positions(const string& inputfile,int natoms,vector<Vector>& positions
// read positions and cell from a file called inputfile
// natoms (input variable) and number of atoms in the file should be consistent
FILE* fp=fopen(inputfile.c_str(),"r");
+ if(!fp){
+ fprintf(stderr,"ERROR: file %s not found\n",inputfile.c_str());
+ exit(1);
+ }
char buffer[256];
char atomname[256];
fgets(buffer,256,fp);
diff --git a/src/core/CLTool.cpp b/src/core/CLTool.cpp
index 30e2d776c..1b871643d 100644
--- a/src/core/CLTool.cpp
+++ b/src/core/CLTool.cpp
@@ -157,7 +157,13 @@ bool CLTool::readInputFile( int argc, char**argv, FILE* in, FILE*out ){
}
FILE* mystdin=in;
- if(argc==2) mystdin=fopen(argv[1],"r");
+ if(argc==2){
+ mystdin=fopen(argv[1],"r");
+ if(!mystdin){
+ fprintf(stderr,"ERROR: cannot open file %s\n",argv[1]);
+ return false;
+ }
+ }
char buffer[256]; std::string line; line.resize(256);
while(fgets(buffer,256,mystdin)){
--
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