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cc65/include/ctype.h
Oliver Schmidt 02daf9f8b5 So far the built-in inlining of several known standard function was always (!) enabled and the option -Os enabled additional, potentially unsafe inlining of some of those functions.
There were two aspects of this behavior that were considered undesirable:
- Although the safe inlining is in general desirable it should only be enabled if asked for it - like any other optimization.
- The option name -Os implies that it is a safe option, the potentially unsafe inlining should have a more explicit name.

So now:
- The option -Os enables the safe inlining.
- The new option --eagerly-inline-funcs enables the potentially unsafe inlining (including the safe inlining).

Additionally was added:
- The option --inline-stdfuncs that does like -Os enable the safe inlining but doesn't enable optimizations.
- The pragma inline-stdfuncs that works identical to --inline-stdfuncs.
- The pragma allow-eager-inline that enables the potentially unsafe inlining but doesn't include the safe inlining. That means that by itself it only marks code as safe for potentially unsafe inlining but doesn't actually enable any inlining.
2017-04-03 23:20:26 +02:00

186 lines
8.3 KiB
C

/*****************************************************************************/
/* */
/* ctype.h */
/* */
/* Character handling */
/* */
/* */
/* */
/* (C) 1998-2013, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#ifndef _CTYPE_H
#define _CTYPE_H
/* The array containing character classification data */
extern unsigned char _ctype[256];
/* Bits used to specify character classes */
#define _CT_LOWER 0x01 /* 0 - Lower case char */
#define _CT_UPPER 0x02 /* 1 - Upper case char */
#define _CT_DIGIT 0x04 /* 2 - Numeric digit */
#define _CT_XDIGIT 0x08 /* 3 - Hex digit (both lower and upper) */
#define _CT_CNTRL 0x10 /* 4 - Control character */
#define _CT_SPACE 0x20 /* 5 - The space character itself */
#define _CT_OTHER_WS 0x40 /* 6 - Other whitespace ('\f', '\n', '\r', '\t', and '\v') */
#define _CT_SPACE_TAB 0x80 /* 7 - Space or tab character */
/* Bit combinations */
#define _CT_ALNUM (_CT_LOWER | _CT_UPPER | _CT_DIGIT)
#define _CT_ALPHA (_CT_LOWER | _CT_UPPER)
#define _CT_NOT_GRAPH (_CT_CNTRL | _CT_SPACE)
#define _CT_NOT_PRINT (_CT_CNTRL)
#define _CT_NOT_PUNCT (_CT_SPACE | _CT_CNTRL | _CT_DIGIT | _CT_UPPER | _CT_LOWER)
#define _CT_WS (_CT_SPACE | _CT_OTHER_WS)
/* Character classification functions */
int __fastcall__ isalnum (int c);
int __fastcall__ isalpha (int c);
int __fastcall__ iscntrl (int c);
int __fastcall__ isdigit (int c);
int __fastcall__ isgraph (int c);
int __fastcall__ islower (int c);
int __fastcall__ isprint (int c);
int __fastcall__ ispunct (int c);
int __fastcall__ isspace (int c);
int __fastcall__ isupper (int c);
int __fastcall__ isxdigit (int c);
#if __CC65_STD__ >= __CC65_STD_C99__
int __fastcall__ isblank (int c); /* New in C99 */
#endif
int __fastcall__ toupper (int c); /* Always external */
int __fastcall__ tolower (int c); /* Always external */
#if __CC65_STD__ >= __CC65_STD_CC65__
unsigned char __fastcall__ toascii (unsigned char c);
/* Convert a target-specific character to ASCII. */
#endif
/* When inlining-of-known-functions is enabled, overload most of the above
** functions by macroes. The function prototypes are available again after
** #undef'ing the macroes.
** Please note that the following macroes do NOT handle EOF correctly, as
** stated in the manual. If you need correct behaviour for EOF, don't
** use --eagerly-inline-funcs, or #undefine the following macroes.
*/
#ifdef __EAGERLY_INLINE_FUNCS__
#define isalnum(c) (__AX__ = (c), \
__asm__ ("tay"), \
__asm__ ("lda %v,y", _ctype), \
__asm__ ("and #%b", _CT_ALNUM), \
__AX__)
#define isalpha(c) (__AX__ = (c), \
__asm__ ("tay"), \
__asm__ ("lda %v,y", _ctype), \
__asm__ ("and #%b", _CT_ALPHA), \
__AX__)
#if __CC65_STD__ >= __CC65_STD_C99__
#define isblank(c) (__AX__ = (c), \
__asm__ ("tay"), \
__asm__ ("lda %v,y", _ctype), \
__asm__ ("and #%b", _CT_SPACE_TAB), \
__AX__)
#endif
#define iscntrl(c) (__AX__ = (c), \
__asm__ ("tay"), \
__asm__ ("lda %v,y", _ctype), \
__asm__ ("and #%b", _CT_CNTRL), \
__AX__)
#define isdigit(c) (__AX__ = (c), \
__asm__ ("tay"), \
__asm__ ("lda %v,y", _ctype), \
__asm__ ("and #%b", _CT_DIGIT), \
__AX__)
#define isgraph(c) (__AX__ = (c), \
__asm__ ("tay"), \
__asm__ ("lda %v,y", _ctype), \
__asm__ ("and #%b", _CT_NOT_GRAPH), \
__asm__ ("cmp #1"), \
__asm__ ("lda #1"), \
__asm__ ("sbc #1"), \
__AX__)
#define islower(c) (__AX__ = (c), \
__asm__ ("tay"), \
__asm__ ("lda %v,y", _ctype), \
__asm__ ("and #%b", _CT_LOWER), \
__AX__)
#define isprint(c) (__AX__ = (c), \
__asm__ ("tay"), \
__asm__ ("lda %v,y", _ctype), \
__asm__ ("and #%b", _CT_NOT_PRINT), \
__asm__ ("eor #%b", _CT_NOT_PRINT), \
__AX__)
#define ispunct(c) (__AX__ = (c), \
__asm__ ("tay"), \
__asm__ ("lda %v,y", _ctype), \
__asm__ ("and #%b", _CT_NOT_PUNCT), \
__asm__ ("cmp #1"), \
__asm__ ("lda #1"), \
__asm__ ("sbc #1"), \
__AX__)
#define isspace(c) (__AX__ = (c), \
__asm__ ("tay"), \
__asm__ ("lda %v,y", _ctype), \
__asm__ ("and #%b", _CT_WS), \
__AX__)
#define isupper(c) (__AX__ = (c), \
__asm__ ("tay"), \
__asm__ ("lda %v,y", _ctype), \
__asm__ ("and #%b", _CT_UPPER), \
__AX__)
#define isxdigit(c) (__AX__ = (c), \
__asm__ ("tay"), \
__asm__ ("lda %v,y", _ctype), \
__asm__ ("and #%b", _CT_XDIGIT), \
__AX__)
#endif
/* End of ctype.h */
#endif