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LibC: Bring the C library close enough to newlib to trick GCC.
Now we can build GCC with --with-newlib, which hopefully cuts down on weird toolchain build issues.
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c02c6fef28
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5 changed files with 83 additions and 95 deletions
129
LibC/ctype.h
129
LibC/ctype.h
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@ -5,102 +5,45 @@
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__BEGIN_DECLS
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ALWAYS_INLINE int __isascii(int ch)
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{
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return (ch & ~0x7f) == 0;
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}
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/* Do what newlib does to appease GCC's --with-newlib option. */
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#define _U 01
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#define _L 02
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#define _N 04
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#define _S 010
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#define _P 020
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#define _C 040
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#define _X 0100
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#define _B 0200
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ALWAYS_INLINE int __isspace(int ch)
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{
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return ch == ' ' || ch == '\f' || ch == '\n' || ch == '\r' || ch == '\t' || ch == '\v';
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}
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extern const char _ctype_[256];
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ALWAYS_INLINE int __islower(int c)
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{
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return c >= 'a' && c <= 'z';
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}
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int tolower(int);
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int toupper(int);
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int isalnum(int);
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int isalpha(int);
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int iscntrl(int);
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int isdigit(int);
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int isxdigit(int);
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int isspace(int);
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int ispunct(int);
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int isprint(int);
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int isgraph(int);
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int islower(int);
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int isupper(int);
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ALWAYS_INLINE int __isupper(int c)
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{
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return c >= 'A' && c <= 'Z';
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}
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#define isalnum(c) (_ctype_[(int)(c)] & (_U | _L | _N))
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#define isalpha(c) (_ctype_[(int)(c)] & (_U | _L))
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#define iscntrl(c) (_ctype_[(int)(c)] & (_C))
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#define isdigit(c) (_ctype_[(int)(c)] & (_N))
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#define isxdigit(c) (_ctype_[(int)(c)] & (_N | _X))
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#define isspace(c) (_ctype_[(int)(c)] & (_S))
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#define ispunct(c) (_ctype_[(int)(c)] & (_P))
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#define isprint(c) (_ctype_[(int)(c)] & (_P|_U|_L|_N|_B))
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#define isgraph(c) (_ctype_[(int)(c)] & (_P|_U|_L|_N))
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#define islower(c) ((_ctype_[(int)(c)] & (_U | _L)) == _L)
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#define isupper(c) ((_ctype_[(int)(c)] & (_U | _L)) == _U)
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int __tolower(int);
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int __toupper(int);
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ALWAYS_INLINE int __isdigit(int c)
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{
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return c >= '0' && c <= '9';
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}
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ALWAYS_INLINE int __ispunct(int c)
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{
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const char* punctuation_characters = "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~";
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return !!strchr(punctuation_characters, c);
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}
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ALWAYS_INLINE int __isprint(int c)
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{
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return c >= 0x20 && c != 0x7f;
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}
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ALWAYS_INLINE int __isalpha(int c)
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{
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return __isupper(c) || __islower(c);
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}
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ALWAYS_INLINE int __isalnum(int c)
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{
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return __isalpha(c) || __isdigit(c);
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}
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ALWAYS_INLINE int __iscntrl(int c)
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{
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return (c >= 0 && c <= 0x1f) || c == 0x7f;
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}
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ALWAYS_INLINE int __isxdigit(int c)
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{
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return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F');
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}
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ALWAYS_INLINE int __isgraph(int c)
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{
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return __isalnum(c) || __ispunct(c);
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}
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#ifdef __cplusplus
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#define __CTYPE_FUNC(name) static inline int name(int c) { return __ ## name(c); }
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__CTYPE_FUNC(isascii)
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__CTYPE_FUNC(isspace)
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__CTYPE_FUNC(islower)
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__CTYPE_FUNC(isupper)
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__CTYPE_FUNC(tolower)
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__CTYPE_FUNC(toupper)
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__CTYPE_FUNC(isdigit)
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__CTYPE_FUNC(ispunct)
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__CTYPE_FUNC(isprint)
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__CTYPE_FUNC(isalpha)
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__CTYPE_FUNC(isalnum)
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__CTYPE_FUNC(iscntrl)
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__CTYPE_FUNC(isxdigit)
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__CTYPE_FUNC(isgraph)
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#else
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#define isascii(c) __isascii(c)
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#define isspace(c) __isspace(c)
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#define islower(c) __islower(c)
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#define isupper(c) __isupper(c)
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#define tolower(c) __tolower(c)
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#define toupper(c) __toupper(c)
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#define isdigit(c) __isdigit(c)
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#define ispunct(c) __ispunct(c)
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#define isprint(c) __isprint(c)
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#define isalpha(c) __isalpha(c)
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#define isalnum(c) __isalnum(c)
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#define iscntrl(c) __iscntrl(c)
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#define isxdigit(c) __isxdigit(c)
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#define isgraph(c) __isgraph(c)
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#endif
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#define isascii(c) ((unsigned)c <= 127)
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#define toascii(c) ((c) & 127)
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__END_DECLS
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