test/widechars.h

/****************************************************************************
 * Copyright 2018,2020 Thomas E. Dickey                                     *
 * Copyright 2012 Free Software Foundation, Inc.                            *
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#ifndef __WIDECHARS_H
#define __WIDECHARS_H 1

#include <test.priv.h>

#if USE_WIDEC_SUPPORT

#if defined(_NC_WINDOWS) && !defined(_MSC_VER) && !defined(EXP_WIN32_DRIVER)
/*
 * MinGW has wide-character functions, but they do not work correctly.
 */

extern int _nc_mbtowc(wchar_t *pwc, const char *s, size_t n);
extern int __MINGW_NOTHROW _nc_mbtowc(wchar_t *pwc, const char *s, size_t n);
#define mbtowc(pwc,s,n) _nc_mbtowc(pwc,s,n)

extern int __MINGW_NOTHROW _nc_mblen(const char *, size_t);
#define mblen(s,n) _nc_mblen(s, n)

#endif /* _WIN32||_WIN64 */

#if HAVE_MBTOWC && HAVE_MBLEN
#define reset_mbytes(state) IGNORE_RC(mblen(NULL, 0)), IGNORE_RC(mbtowc(NULL, NULL, 0))
#define count_mbytes(buffer,length,state) mblen(buffer,length)
#define check_mbytes(wch,buffer,length,state) \
	(int) mbtowc(&wch, buffer, length)
#define state_unused
#elif HAVE_MBRTOWC && HAVE_MBRLEN
#define reset_mbytes(state) init_mb(state)
#define count_mbytes(buffer,length,state) mbrlen(buffer,length,&state)
#define check_mbytes(wch,buffer,length,state) \
	(int) mbrtowc(&wch, buffer, length, &state)
#else
make an error
#endif

#else

#endif /* USE_WIDEC_SUPPORT */

extern void widechars_stub(void);

#endif /* __WIDECHARS_H */