limits.h 3.2 KB

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  1. /****************************************************************************
  2. * arch/misoc/include/limits.h
  3. *
  4. * Copyright (C) 2016 Gregory Nutt. All rights reserved.
  5. * Author: Gregory Nutt <gnutt@nuttx.org>
  6. *
  7. * Redistribution and use in source and binary forms, with or without
  8. * modification, are permitted provided that the following conditions
  9. * are met:
  10. *
  11. * 1. Redistributions of source code must retain the above copyright
  12. * notice, this list of conditions and the following disclaimer.
  13. * 2. Redistributions in binary form must reproduce the above copyright
  14. * notice, this list of conditions and the following disclaimer in
  15. * the documentation and/or other materials provided with the
  16. * distribution.
  17. * 3. Neither the name NuttX nor the names of its contributors may be
  18. * used to endorse or promote products derived from this software
  19. * without specific prior written permission.
  20. *
  21. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24. * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  25. * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26. * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27. * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  28. * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29. * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  31. * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32. * POSSIBILITY OF SUCH DAMAGE.
  33. *
  34. ****************************************************************************/
  35. #ifndef __ARCH_MISOC_INCLUDE_LIMITS_H
  36. #define __ARCH_MISOC_INCLUDE_LIMITS_H
  37. /****************************************************************************
  38. * Included Files
  39. ****************************************************************************/
  40. /****************************************************************************
  41. * Pre-processor Definitions
  42. ****************************************************************************/
  43. #define CHAR_BIT 8
  44. #define SCHAR_MIN (-SCHAR_MAX - 1)
  45. #define SCHAR_MAX 127
  46. #define UCHAR_MAX 255
  47. /* These could be different on machines where char is unsigned */
  48. #ifdef __CHAR_UNSIGNED__
  49. #define CHAR_MIN 0
  50. #define CHAR_MAX UCHAR_MAX
  51. #else
  52. #define CHAR_MIN SCHAR_MIN
  53. #define CHAR_MAX SCHAR_MAX
  54. #endif
  55. #define SHRT_MIN (-SHRT_MAX - 1)
  56. #define SHRT_MAX 32767
  57. #define USHRT_MAX 65535U
  58. /* Integer is four bytes */
  59. #define INT_MIN (-INT_MAX - 1)
  60. #define INT_MAX 2147483647
  61. #define UINT_MAX 4294967295U
  62. /* These change on 32-bit and 64-bit platforms */
  63. #define LONG_MIN (-LONG_MAX - 1)
  64. #define LONG_MAX 2147483647L
  65. #define ULONG_MAX 4294967295UL
  66. #define LLONG_MIN (-LLONG_MAX - 1)
  67. #define LLONG_MAX 9223372036854775807LL
  68. #define ULLONG_MAX 18446744073709551615ULL
  69. /* A pointer is four bytes */
  70. #define PTR_MIN (-PTR_MAX - 1)
  71. #define PTR_MAX 2147483647
  72. #define UPTR_MAX 4294967295U
  73. #endif /* __ARCH_MISOC_INCLUDE_LIMITS_H */