2023-10-08 12:15:08 +00:00
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#ifndef _CTYPE_H
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#define _CTYPE_H
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unsigned char isalnum(unsigned char c);
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unsigned char isalpha(unsigned char c);
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unsigned char islower(unsigned char c);
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unsigned char isupper(unsigned char c);
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unsigned char isdigit(unsigned char c);
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unsigned char isspecl(unsigned char c);
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unsigned char isspace(unsigned char c);
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unsigned char ispunct(unsigned char c);
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unsigned char isgraph(unsigned char c);
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#endif
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