Changeset f75030 for molecuilder/src/config.cpp

Timestamp:

May 23, 2008, 9:17:19 AM (17 years ago)

Author:

Frederik Heber <heber@…>

Children:

6145aa7

Parents:

6c96f4

Message:

Lots of for loops now count in reverse order where it does not matter, some 3 -> NDIM

for(i=0;i<var;i++) is slower than for (i=var;i--;) if the order of the i's is not important (note: i-- is also a value and it stops when on i == 0 automatically)
in builder.cpp there were some remnant 3 actually meant to be NDIM

File:

• molecuilder/src/config.cpp (modified) (4 diffs)

molecuilder/src/config.cpp ¶

@@ -282 +282 @@
         case 'j': // BoxLength
           cout << Verbose(0) << "enter lower triadiagonalo form of basis matrix" << endl << endl;
-          for (int i=0;i<6;i++) {
+          for (int i=6;i--;) {
             cout << Verbose(0) << "Cell size" << i << ": ";
             cin >> mol->cell_size[i];
@@ -408 +408 @@
 
 /** Retrieves the path in the given config file name.
- * \param *filename config file string
+ * \param filename config file string
  */
-void config::RetrieveConfigPathAndName(char *filename)
+void config::RetrieveConfigPathAndName(string filename)
 {
   char *ptr = NULL;
+  char *buffer = new char[MAXSTRINGSIZE];
+  strncpy(buffer, filename.c_str(), MAXSTRINGSIZE);
   int last = -1;
-  for(int i=0;i<MAXSTRINGSIZE;i++) {
-    if (filename[i] == '/')
-      last = i;
-    if (filename[i] == '\0')
+  for(last=MAXSTRINGSIZE;last--;) {
+    if (buffer[last] == '/')
       break;
   }
-  if (last == -1) { // no path in front, set to local directory.
+  if (last == 0) { // no path in front, set to local directory.
     strcpy(configpath, "./");
-    ptr = filename;
+    ptr = buffer;
   } else {
-    strncpy(configpath, filename, last+1);
-    ptr = &filename[last+1];
+    strncpy(configpath, buffer, last+1);
+    ptr = &buffer[last+1];
     if (last < 254)
       configpath[last+1]='\0';
@@ -431 +431 @@
   strcpy(configname, ptr);
   cout << "Found configpath: " << configpath << ", dir slash was found at " << last << ", config name is " << configname << "." << endl;
+  delete[](buffer);
 };
 
@@ -824 +825 @@
   
   
-  for (i=0;i<128;i++) elementhash[i] = NULL;
+  for (i=MAX_ELEMENTS;i--;) 
+    elementhash[i] = NULL;
   cout << Verbose(0) << "Parsing Ions ..." << endl;
   No=0;