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 namespace cln {
  15
  16 void cl_spushstring::append (const char * ptr, uintL len)
  17 {
  18         if (index + len > alloc) {
  19                 var uintL newalloc = index+2*len;
  20                 if (newalloc < 2*alloc) { newalloc = 2*alloc; }
  21                 var char* newbuffer = (char *) malloc_hook(newalloc);
  22                 memcpy(newbuffer,buffer,alloc);
  23                 free_hook(buffer);
  24                 buffer = newbuffer;
  25                 alloc = newalloc;
  26         }
  27         // Now index+len <= alloc.
  28         for (uintL count = len; count > 0; count--)
  29                 buffer[index++] = *ptr++;
  30 }
  31
  32 }  // namespace cln