src/base/string/cl_spushstring_append.cc

   1 // class cl_spushstring.
   2
   3 // General includes.
   4 #include "cl_sysdep.h"
   5
   6 // Specification.
   7 #include "cl_spushstring.h"
   8
   9
  10 // Implementation.
  11
  12 #include <string.h> // declares memcpy()
  13
  14 void cl_spushstring::append (const char * ptr, uintL len)
  15 {
  16         if (index + len > alloc) {
  17                 var uintL newalloc = index+2*len;
  18                 if (newalloc < 2*alloc) { newalloc = 2*alloc; }
  19                 var char* newbuffer = (char *) cl_malloc_hook(newalloc);
  20                 memcpy(newbuffer,buffer,alloc);
  21                 cl_free_hook(buffer);
  22                 buffer = newbuffer;
  23                 alloc = newalloc;
  24         }
  25         // Now index+len <= alloc.
  26         for (uintL count = len; count > 0; count--)
  27                 buffer[index++] = *ptr++;
  28 }