crabc 0.7.8

A Rust musl-compatible libc with a dynamic linker
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/* Copyright (c) 2026 Meng Zhuo */
/* SPDX-License-Identifier: BSD-3-Clause */

#ifndef _CTYPE_H
#define _CTYPE_H

#include <features.h>
#include <locale.h>

#ifdef __cplusplus
extern "C" {
#endif

#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
 || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
 || defined(_BSD_SOURCE)

int isalnum(int);
int isalpha(int);
int isblank(int);
int iscntrl(int);
int isdigit(int);
int isgraph(int);
int islower(int);
int isprint(int);
int ispunct(int);
int isspace(int);
int isupper(int);
int isxdigit(int);
int tolower(int);
int toupper(int);

int isalnum_l(int, locale_t);
int isalpha_l(int, locale_t);
int isblank_l(int, locale_t);
int iscntrl_l(int, locale_t);
int isdigit_l(int, locale_t);
int isgraph_l(int, locale_t);
int islower_l(int, locale_t);
int isprint_l(int, locale_t);
int ispunct_l(int, locale_t);
int isspace_l(int, locale_t);
int isupper_l(int, locale_t);
int isxdigit_l(int, locale_t);
int tolower_l(int, locale_t);
int toupper_l(int, locale_t);

int isascii(int);
int toascii(int);

#else

int isalnum(int);
int isalpha(int);
int isascii(int);
int isblank(int);
int iscntrl(int);
int isdigit(int);
int isgraph(int);
int islower(int);
int isprint(int);
int ispunct(int);
int isspace(int);
int isupper(int);
int isxdigit(int);
int toascii(int);
int tolower(int);
int toupper(int);

#endif

#ifdef __cplusplus
}
#endif


/* musl 1.2.6 compatibility helpers */
static __inline int __isspace(int _c)
{
    return _c == ' ' || (unsigned)_c-'\t' < 5;
}

#define isalpha(a) (0 ? isalpha(a) : (((unsigned)(a)|32)-'a') < 26)
#define isascii(a) (0 ? isascii(a) : (unsigned)(a) < 128)
#define isdigit(a) (0 ? isdigit(a) : ((unsigned)(a)-'0') < 10)
#define isgraph(a) (0 ? isgraph(a) : ((unsigned)(a)-0x21) < 0x5e)
#define islower(a) (0 ? islower(a) : ((unsigned)(a)-'a') < 26)
#define isprint(a) (0 ? isprint(a) : ((unsigned)(a)-0x20) < 0x5f)
#define isspace(a) __isspace(a)
#define isupper(a) (0 ? isupper(a) : ((unsigned)(a)-'A') < 26)

/* musl 1.2.6 compatibility macros */
#define _tolower(a) ((a)|0x20)
#define _toupper(a) ((a)&0x5f)

/* musl 1.2.6 per-header compatibility macros */
#define __BYTE_ORDER 1234
#define __LITTLE_ENDIAN 1234
#define __LONG_MAX 0x7fffffffffffffffL
#define __BIG_ENDIAN 4321
#endif