clean debugging lines

Author: levo-str

src/colvarbias_abf.cpp

@@ -457,7 +457,6 @@ int colvarbias_abf::update()
       if ( pabf_freq && cvm::step_relative() % pabf_freq == 0 ) {
         cvm::real err;
         std::vector<int> ix_test = {16,29};
-        cvm::log("the gradient before integration is :" +cvm::to_str(pmf->gradients->value(ix_test,0)) + cvm::to_str(pmf->gradients->value(ix_test,0)));
         int iter = pmf->integrate(integrate_iterations, integrate_tol, err);
         if ( iter == integrate_iterations ) {
           cvm::log("Warning: PMF integration did not converge to " + cvm::to_str(integrate_tol)

src/colvargrid.h

@@ -1663,7 +1663,7 @@ class colvar_grid_gradient : public colvar_grid<cvm::real>
       }
     std::vector<int>ix_min(nd, 0);
     std::vector<int>ix_max(nd, 0);
-    for (int i =0; i < nd; i++) {
+    for (size_t i =0; i < nd; i++) {
       // TODO: handle periodic case as well
       ixmin = cv_value[0] - smoothing;
       ixmax = cv_value[0] + smoothing;
@@ -1683,10 +1683,9 @@ class colvar_grid_gradient : public colvar_grid<cvm::real>
     int i = 0;
     for (std::vector<int> ix = ix_min; ix < ix_max; incr(ix)) {
       dist = 0;
-      coeff;
       stop = 1;
       std::vector<int>ix_copy = std::vector<int>(ix);
-      for (int dim = 0; dim < nd; dim++) {
+      for (size_t dim = 0; dim < nd; dim++) {
         if (!index_ok(ix)) {
           if (periodic[dim]) {
             ix_copy[dim] = ix_copy[dim];