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Posted By

verhaeg on 10/22/10


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String memory realloc


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Memory reallocation

 / Published in: C
 

Realloc memory at every X steps. Useful when allocating fixed number of items (in this case chars).

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  1. char *variable;
  2. int size = 120, tmpsize = 0;
  3.  
  4. variable = (char *)malloc(size*sizeof(char));
  5.  
  6. while ( ... ) {
  7. 	//Realloc memory
  8. 	tmpsize += 40;
  9. 	if (tmpsize > size) {
  10. 		size += 120;
  11. 		variable = (char *)realloc(variable, size*sizeof(char));
  12. 	}
  13.  
  14. 	strcat(variable,"your string to add with a fixed size");
  15. }

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