1 /*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)ansi.h 8.1 (Berkeley) 06/10/93 8 */ 9 10 #ifndef _ANSI_H_ 11 #define _ANSI_H_ 12 13 /* 14 * Types which are fundamental to the implementation and may appear in 15 * more than one standard header are defined here. Standard headers 16 * then use: 17 * #ifdef _BSD_SIZE_T_ 18 * typedef _BSD_SIZE_T_ size_t; 19 * #undef _BSD_SIZE_T_ 20 * #endif 21 * 22 * Thanks, ANSI! 23 */ 24 #define _BSD_CLOCK_T_ unsigned long /* clock() */ 25 #define _BSD_PTRDIFF_T_ int /* ptr1 - ptr2 */ 26 #define _BSD_SIZE_T_ unsigned int /* sizeof() */ 27 #define _BSD_SSIZE_T_ int /* byte count or error */ 28 #define _BSD_TIME_T_ long /* time() */ 29 #define _BSD_VA_LIST_ char * /* va_list */ 30 31 /* 32 * Runes (wchar_t) is declared to be an ``int'' instead of the more natural 33 * ``unsigned long'' or ``long''. Two things are happening here. It is not 34 * unsigned so that EOF (-1) can be naturally assigned to it and used. Also, 35 * it looks like 10646 will be a 31 bit standard. This means that if your 36 * ints cannot hold 32 bits, you will be in trouble. The reason an int was 37 * chosen over a long is that the is*() and to*() routines take ints (says 38 * ANSI C), but they use _RUNE_T_ instead of int. By changing it here, you 39 * lose a bit of ANSI conformance, but your programs will still work. 40 * 41 * Note that _WCHAR_T_ and _RUNE_T_ must be of the same type. When wchar_t 42 * and rune_t are typedef'd, _WCHAR_T_ will be undef'd, but _RUNE_T remains 43 * defined for ctype.h. 44 */ 45 #define _BSD_WCHAR_T_ int /* wchar_t */ 46 #define _BSD_RUNE_T_ int /* rune_t */ 47 48 #endif /* _ANSI_H_ */ 49