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#ifndef _CTYPE_H
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#define _CTYPE_H
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/*
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/*
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** All character classification functions except isascii().
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** All character classification functions except isascii().
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** Integer argument (c) must be in ASCII range (0-127) for
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** Integer argument (c) must be in ASCII range (0-127) for
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** dependable answers.
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** dependable answers.
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*/
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*/
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#define isascii(c) (!((c)&(~0x7f)))
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#define isascii(c) (!((c)&(~0x7f)))
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#define toascii(c) ((c)&0x7f)
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#define toascii(c) ((c)&0x7f)
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extern unsigned char tolower(unsigned char c);
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extern unsigned char tolower(unsigned char c);
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extern unsigned char toupper(unsigned char c);
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extern unsigned char toupper(unsigned char c);
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#endif