Changeset f75030 for molecuilder/src/helpers.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/helpers.cpp (modified) (3 diffs)

molecuilder/src/helpers.cpp

@@ -106 +106 @@
   if (buffer == NULL)
     cout << Verbose(0) << output << endl;
-  for (i=0;i<size;i++)  // reset
+  for (i=size;i--;)  // reset
     buffer[i] = i % 2 == 0 ? 'p': 'c';
   buffer[size] = '\0'; // and set length marker on its end
@@ -147 +147 @@
   int res = 1;
   int j;
-  for (j=0;j<n;j++)
+  for (j=n;j--;)
     res *= base;
   return res;
@@ -172 +172 @@
   returnstring[order] = '\0';
   number = digits;
-  for (int i=order-1;i>=0;i--){
+  for (int i=order-1;i--;){
     returnstring[i] = '0' + (char)(number % 10);
     number = (int)floor(((double)number / 10.));