for loop - Unknown "for" statement (C) -

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I came across this as browsing through a foreign code: 

 for  ( i = 0; i   
 
 
 The following code is valid  
  for (i = 0; i & lt; len; i ++, j ++);   
 and is equal to  
 for  (i = 0; i   
 which is equivalent to  
  // Note- There is no Jammu after i ++; For (i = 0; i   
 So there is no need to write J in your statement. Jammu has written for you (Statement), there is no function in it. Therefore, this program can be left without being effective.  
 Note- The following codes are valid and do not give any errors, but this is meaningless.  
  10;

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