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The managed string library is based on a dynamic approach in that memory is allocated and reallocated as required. This approach eliminates the possibility of unbounded copies, NULLnull-termination errors, and truncation by ensuring there is always adequate space available for the resulting string (including the terminating NULL character).

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The following code illustrates how the managed string library can be used to create a managed string and retrieve a NULLnull-terminated byte string from the managed string.

errno_t retValue;
char *cstr;  /* pointer to NULL null- terminated byte string */
string_m str1 = NULL;

if (retValue = strcreate_m(&str1, "hello, world", 0, NULL)) {
  fprintf(stderr, "Error %d from strcreate_m.\n", retValue);
}
else { /* retrieve NULL null- terminated byte string and print */
  if (retValue = getstr_m(&cstr, str1)) {
    fprintf(stderr, "error %d from getstr_m.\n", retValue);
  }
  printf("(%s)\n", cstr);
  free(cstr); /* free NULL null- terminated byte string */
}

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