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Trim function for strings in C++

/ Published in: C++
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  1. void trim(char *s, const int len)
  2. {
  3.     int end = len - 1;
  4.     int start = 0;
  5.     int i = 0;
  6.  
  7.     while ((start < len) && (s[start] <= ' '))
  8.     {
  9.         start++;
  10.     }
  11.  
  12.     while ((start < end) && (s[end] <= ' '))
  13.     {
  14.         end--;
  15.     }
  16.  
  17.     if (start > end)
  18.     {
  19.         memset(s, '\0', len);
  20.         return;
  21.     }
  22.  
  23.     for (i = 0; (i + start) <= end; i++)
  24.     {
  25.         s[i] = s[start + i];
  26.     }
  27.     memset((s + i), '\0', len - i);
  28. }

URL: http://blog.srikanths.net/2008/10/trim-for-c.html

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