String handling in ANSI C (Memory Allocation) -


How can it be that I can specify a string * variable a string, and no need to allocate memory is?

For example, if I have a function, then returns a four * (for example a file path) and I call the function this way. 

  char * path; Path = get_path ();   
 If I do not know how the length of the path will be, how will I behave? It is strictly necessary to allocate the size of the path, before the "path"   
 
 
 In your code:  
  four * path; path = Get_path ();   
  get_path  gives a string (or, of course, of the address) a string (an indicator for the string one for its first letter Is an indicator). Assignment only copy of that pointer value Script, which stores it in the  path .  
  get_path  function should be allocated to keep the string in any way .  
 There are many ways to do that. Some people make it the responsibility of the collar when space will not be required.  
 Recommend to read: Section 4 (Points), 6 (arrays and pointers), 7 (memory allocation), and 8 (characters and strings).

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