use basename for mcmc output files

src/camel/MCMC/exec/mainMCMC.cc

@@ -19,6 +19,8 @@
 #include "Chi2Factory.hh"
 
 #include "cxxsupport/paramfile.h"
+#include "cxxsupport/cxxutils.h"
+
 #include "Chi2Combiner.hh"
 #include "Parser.hh"
 
@@ -48,9 +50,12 @@ int main(int argc, char *argv[])
     std::cout << "output file " + fileName + " already exists: removing it"<<endl;
     remove_file(fileName);
   }
-  string ar_file=string("ar_vs_length_")+fileName;
-  string scale_file=string("scale_")+fileName;
-  string cor_file=string("last_step_")+fileName;
+  string base=BaseName(fileName);
+
+  string ar_file=string("ar_vs_length_")+base;
+  string scale_file=string("scale_")+base;
+  string cor_file=string("last_step_")+base;
+
 
   cout << "output files:" <<endl;
   cout << ar_file << " " << scale_file << " " << cor_file << " " << endl;

src/cxxsupport/cxxutils.cc

@@ -294,3 +294,15 @@ string DirName(string source)
     source.erase(std::find(source.rbegin(), source.rend(), '/').base(), source.end());
     return source;
 }
+
+string BaseName(string source)
+{
+    if (source.size() <= 1) //Make sure it's possible to check the last character.
+    {
+        return source;
+    }
+    planck_assert(*(source.rbegin() + 1) != '/',source +" had no BaseName");
+
+    source.erase(source.begin(),std::find(source.rbegin(), source.rend(), '/').base());
+    return source;
+}

src/cxxsupport/cxxutils.h

@@ -264,6 +264,8 @@ inline unsigned int healpix_repcount (int npix)
 
   //acess directory name without trailing slash
   std::string DirName (std::string x);
+  std::string BaseName (std::string x);
+
 
 
 

work/ref/hlpTT_PS_H0.cml

@@ -83,3 +83,7 @@ set_tol=0.00001
 remove_cosmo_limits=false
 doHesse=true
 ###############################################################
+#MCMC
+algo=ada
+length = 50000
+proposal_cov = hlpTT_PS_H0_min_ref/covmat8.dat