EmbeddedPkg/Library/FdtLib/fdt_strtoul.c

   1 #/* @file
   2 #  Copyright (c) 2018, Linaro Limited. All rights reserved.
   3 #
   4 #  SPDX-License-Identifier: BSD-2-Clause-Patent
   5 #
   6 #*/
   7
   8 #include <Base.h>
   9 #include <Library/BaseLib.h>
  10 #include <Library/DebugLib.h>
  11
  12 unsigned long
  13 strtoul (
  14   const char  *nptr,
  15   char        **endptr,
  16   int         base
  17   )
  18 {
  19   RETURN_STATUS  Status;
  20   UINTN          ReturnValue;
  21
  22   ASSERT (base == 10 || base == 16);
  23
  24   if (base == 10) {
  25     Status = AsciiStrDecimalToUintnS (nptr, endptr, &ReturnValue);
  26   } else if (base == 16) {
  27     Status = AsciiStrHexToUintnS (nptr, endptr, &ReturnValue);
  28   } else {
  29     Status = RETURN_INVALID_PARAMETER;
  30   }
  31
  32   if (RETURN_ERROR (Status)) {
  33     return MAX_UINTN;
  34   }
  35
  36   return ReturnValue;
  37 }