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  1. /*===-- include/llvm-c/DataTypes.h - Define fixed size types ------*- C -*-===*\
  2. |*                                                                            *|
  3. |* Part of the LLVM Project, under the Apache License v2.0 with LLVM          *|
  4. |* Exceptions.                                                                *|
  5. |* See https://llvm.org/LICENSE.txt for license information.                  *|
  6. |* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception                    *|
  7. |*                                                                            *|
  8. |*===----------------------------------------------------------------------===*|
  9. |*                                                                            *|
  10. |* This file contains definitions to figure out the size of _HOST_ data types.*|
  11. |* This file is important because different host OS's define different macros,*|
  12. |* which makes portability tough.  This file exports the following            *|
  13. |* definitions:                                                               *|
  14. |*                                                                            *|
  15. |*   [u]int(32|64)_t : typedefs for signed and unsigned 32/64 bit system types*|
  16. |*   [U]INT(8|16|32|64)_(MIN|MAX) : Constants for the min and max values.     *|
  17. |*                                                                            *|
  18. |* No library is required when using these functions.                         *|
  19. |*                                                                            *|
  20. |*===----------------------------------------------------------------------===*/
  21.  
  22. /* Please leave this file C-compatible. */
  23.  
  24. #ifndef LLVM_C_DATATYPES_H
  25. #define LLVM_C_DATATYPES_H
  26.  
  27. #include <inttypes.h>
  28. #include <stdint.h>
  29.  
  30. #ifndef _MSC_VER
  31.  
  32. #if !defined(UINT32_MAX)
  33. # error "The standard header <cstdint> is not C++11 compliant. Must #define "\
  34.         "__STDC_LIMIT_MACROS before #including llvm-c/DataTypes.h"
  35. #endif
  36.  
  37. #if !defined(UINT32_C)
  38. # error "The standard header <cstdint> is not C++11 compliant. Must #define "\
  39.         "__STDC_CONSTANT_MACROS before #including llvm-c/DataTypes.h"
  40. #endif
  41.  
  42. /* Note that <inttypes.h> includes <stdint.h>, if this is a C99 system. */
  43. #include <sys/types.h>
  44.  
  45. #ifdef _AIX
  46. // GCC is strict about defining large constants: they must have LL modifier.
  47. #undef INT64_MAX
  48. #undef INT64_MIN
  49. #endif
  50.  
  51. #else /* _MSC_VER */
  52. #ifdef __cplusplus
  53. #include <cstddef>
  54. #include <cstdlib>
  55. #else
  56. #include <stddef.h>
  57. #include <stdlib.h>
  58. #endif
  59. #include <sys/types.h>
  60.  
  61. #if defined(_WIN64)
  62. typedef signed __int64 ssize_t;
  63. #else
  64. typedef signed int ssize_t;
  65. #endif /* _WIN64 */
  66.  
  67. #endif /* _MSC_VER */
  68.  
  69. /* Set defaults for constants which we cannot find. */
  70. #if !defined(INT64_MAX)
  71. # define INT64_MAX 9223372036854775807LL
  72. #endif
  73. #if !defined(INT64_MIN)
  74. # define INT64_MIN ((-INT64_MAX)-1)
  75. #endif
  76. #if !defined(UINT64_MAX)
  77. # define UINT64_MAX 0xffffffffffffffffULL
  78. #endif
  79.  
  80. #endif /* LLVM_C_DATATYPES_H */
  81.