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 strtoul(const char *nptr, char **endptr, int base)
  13 {
  14     RETURN_STATUS   Status;
  15     UINTN           ReturnValue;
  16
  17     ASSERT (base == 10 || base == 16);
  18
  19     if (base == 10) {
  20       Status = AsciiStrDecimalToUintnS (nptr, endptr, &ReturnValue);
  21     } else if (base == 16) {
  22       Status = AsciiStrHexToUintnS (nptr, endptr, &ReturnValue);
  23     } else {
  24       Status = RETURN_INVALID_PARAMETER;
  25     }
  26
  27     if (RETURN_ERROR (Status)) {
  28       return MAX_UINTN;
  29     }
  30
  31     return ReturnValue;
  32 }