text: #include "sls_buffer.h"
  
  int main(int argc, char* argv[])
  {
      sls_buffer* b = sls_buffer_create_from_str("abcdefg", 2);
      char c;
      while ( (c = sls_buffer_getc(b)) > 0 )
          printf("%c", c);
      sls_buffer_destroy(b);
      return 0;
  }
  