| 1 | /* std.h - automagically adapt to old and new compilers. |
| 2 | In the Public Domain; written by Mike Haertel. */ |
| 3 | |
| 4 | #if __STDC__ |
| 5 | |
| 6 | #include <stddef.h> |
| 7 | #include <limits.h> |
| 8 | |
| 9 | typedef void *PTR; |
| 10 | typedef const void *PTRCONST; |
| 11 | |
| 12 | #define AND , |
| 13 | #define DEFUN(F, L, P) F(P) |
| 14 | #define EXFUN(F, P) F P |
| 15 | |
| 16 | #else |
| 17 | |
| 18 | #define const |
| 19 | #define volatile |
| 20 | |
| 21 | /* The following approximations of <stddef.h> and <limits.h> are appropriate |
| 22 | for most machines. */ |
| 23 | typedef int ptrdiff_t; |
| 24 | typedef unsigned int size_t; |
| 25 | #define NULL 0 |
| 26 | #define offsetof(T, M) ((size_t)&((T *) 0)->(M)) |
| 27 | |
| 28 | #define CHAR_BIT 8 |
| 29 | #define SCHAR_MIN -128 |
| 30 | #define SCHAR_MAX 127 |
| 31 | #define UCHAR_MAX 255 |
| 32 | #define CHAR_MIN ((char) UCHAR_MAX < 0 ? SCHAR_MIN : 0) |
| 33 | #define CHAR_MAX ((char) UCHAR_MAX < 0 ? SCHAR_MAX : UCHAR_MAX) |
| 34 | #define SHRT_MIN -32768 |
| 35 | #define SHRT_MAX 32767 |
| 36 | #define USHRT_MAX 65535 |
| 37 | #define INT_MIN (sizeof (int) == 2 ? -32768 : -2147483648) |
| 38 | #define INT_MAX (sizeof (int) == 2 ? 32767 : 2147483647) |
| 39 | #define UINT_MAX (sizeof (int) == 2 ? 65535 : 4294967295) |
| 40 | #define LONG_MIN -2147483648L |
| 41 | #define LONG_MAX 2147483647L |
| 42 | #define ULONG_MAX 4294967295 |
| 43 | |
| 44 | typedef char *PTR; |
| 45 | typedef const char *PTRCONST; |
| 46 | |
| 47 | #define AND ; |
| 48 | #define DEFUN(F, L, P) F L P ; |
| 49 | #define EXFUN(F, P) F() |
| 50 | |
| 51 | #endif |
| 52 | |
| 53 | /* Deal with <ctype.h> lossage. */ |
| 54 | #include <ctype.h> |
| 55 | |
| 56 | #ifndef isascii |
| 57 | |
| 58 | #define ISALNUM(C) isalnum(C) |
| 59 | #define ISALPHA(C) isalpha(C) |
| 60 | #define ISCNTRL(C) iscntrl(C) |
| 61 | #define ISDIGIT(C) isdigit(C) |
| 62 | #define ISGRAPH(C) isgraph(C) |
| 63 | #define ISLOWER(C) islower(C) |
| 64 | #define ISPRINT(C) isprint(C) |
| 65 | #define ISPUNCT(C) ispunct(C) |
| 66 | #define ISSPACE(C) isspace(C) |
| 67 | #define ISUPPER(C) isupper(C) |
| 68 | #define ISXDIGIT(C) isxdigit(C) |
| 69 | #define TOLOWER(C) tolower(C) |
| 70 | #define TOUPPER(C) toupper(C) |
| 71 | |
| 72 | #else |
| 73 | |
| 74 | #define ISALNUM(C) (isascii(C) && isalnum(C)) |
| 75 | #define ISALPHA(C) (isascii(C) && isalpha(C)) |
| 76 | #define ISCNTRL(C) (isascii(C) && iscntrl(C)) |
| 77 | #define ISDIGIT(C) (isascii(C) && isdigit(C)) |
| 78 | #define ISGRAPH(C) (isascii(C) && isgraph(C)) |
| 79 | #define ISLOWER(C) (isascii(C) && islower(C)) |
| 80 | #define ISPRINT(C) (isascii(C) && isprint(C)) |
| 81 | #define ISPUNCT(C) (isascii(C) && ispunct(C)) |
| 82 | #define ISSPACE(C) (isascii(C) && isspace(C)) |
| 83 | #define ISUPPER(C) (isascii(C) && isupper(C)) |
| 84 | #define ISXDIGIT(C) (isascii(C) && isxdigit(C)) |
| 85 | #define TOLOWER(C) (ISUPPER(C) ? tolower(C) : (C)) |
| 86 | #define TOUPPER(C) (ISLOWER(C) ? toupper(C) : (C)) |
| 87 | |
| 88 | #endif |
| 89 | |
| 90 | /* Declaring this here should be safe. Some losing <errno.h>'s don't. */ |
| 91 | extern int errno; |
| 92 | |
| 93 | /* Adapt variable arguments to new implementations (with <stdarg.h>) |
| 94 | or old (which are assumed to have <varargs.h>). */ |
| 95 | |
| 96 | #if __STDC__ |
| 97 | |
| 98 | #include <stdarg.h> |
| 99 | |
| 100 | #define VA_ALIST ... |
| 101 | #define VA_DCL ... |
| 102 | #define VA_LIST va_list |
| 103 | #define VA_START(AP, LASTARG) va_start(AP, LASTARG) |
| 104 | #define VA_ARG(AP, TYPE) va_arg(AP, TYPE) |
| 105 | #define VA_END(AP) va_end(AP) |
| 106 | |
| 107 | #define VA_DEFUN(F, L, P) F(P) |
| 108 | |
| 109 | #else |
| 110 | |
| 111 | #include <varargs.h> |
| 112 | |
| 113 | #define VA_ALIST va_alist |
| 114 | #define VA_DCL va_dcl |
| 115 | #define VA_LIST va_list |
| 116 | #define VA_START(AP, LASTARG) va_start(AP) |
| 117 | #define VA_ARG(AP, TYPE) va_arg(AP, TYPE) |
| 118 | #define VA_END(AP) va_end(AP) |
| 119 | |
| 120 | #define VA_DEFUN(F, L, P) F L P |
| 121 | |
| 122 | #endif |
| 123 | |
| 124 | /* Declarations of traditional library routines. */ |
| 125 | extern double EXFUN(atof, (const char *)); |
| 126 | extern int EXFUN(atoi, (const char *)); |
| 127 | extern long int EXFUN(atol, (const char *)); |
| 128 | extern int EXFUN(rand, (void)); |
| 129 | extern void EXFUN(srand, (int)); |
| 130 | extern PTR EXFUN(calloc, (size_t, size_t)); |
| 131 | extern void EXFUN(free, (PTR)); |
| 132 | extern PTR EXFUN(malloc, (size_t)); |
| 133 | extern PTR EXFUN(realloc, (PTR, size_t)); |
| 134 | extern void EXFUN(abort, (void)); |
| 135 | extern void EXFUN(exit, (int)); |
| 136 | extern char *EXFUN(getenv, (const char *)); |
| 137 | extern int EXFUN(system, (const char *)); |
| 138 | extern void EXFUN(qsort, (PTR, size_t, size_t, |
| 139 | int EXFUN((*), (PTRCONST, PTRCONST)))); |
| 140 | extern int EXFUN(abs, (int)); |
| 141 | extern long int EXFUN(labs, (long int)); |
| 142 | |
| 143 | #ifdef X_strerror |
| 144 | extern char *EXFUN(strerror, (int)); |
| 145 | #endif |