musl/src/multibyte/internal.h
Rich Felker 6cec7bc57f remove comments on copyright status from UTF-8 implementation files
despite clarifications made to the COPYRIGHT file in commit
f0a61399330bae42beeb27d6ecd05570b3382a60, there continues to be
confusion about whether the permissions granted actually apply to all
files. I am the sole author of these files and clearly intend, and
have always intended, for the grant of permission to apply to them.
2016-06-21 16:33:14 -04:00

27 lines
812 B
C

#define bittab __fsmu8
#include <stdint.h>
#ifdef __PIC__
__attribute__((__visibility__("hidden")))
#endif
extern const uint32_t bittab[];
/* Upper 6 state bits are a negative integer offset to bound-check next byte */
/* equivalent to: ( (b-0x80) | (b+offset) ) & ~0x3f */
#define OOB(c,b) (((((b)>>3)-0x10)|(((b)>>3)+((int32_t)(c)>>26))) & ~7)
/* Interval [a,b). Either a must be 80 or b must be c0, lower 3 bits clear. */
#define R(a,b) ((uint32_t)((a==0x80 ? 0x40u-b : 0u-a) << 23))
#define FAILSTATE R(0x80,0x80)
#define SA 0xc2u
#define SB 0xf4u
/* Arbitrary encoding for representing code units instead of characters. */
#define CODEUNIT(c) (0xdfff & (signed char)(c))
#define IS_CODEUNIT(c) ((unsigned)(c)-0xdf80 < 0x80)
/* Get inline definition of MB_CUR_MAX. */
#include "locale_impl.h"