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27 lines
941 B
C
27 lines
941 B
C
#ifndef _CTYPE_H
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#define _CTYPE_H 1
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// Character definition macros.
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#define isalnum(c) (isdigit(c) || isalpha(c))
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#define isalpha(c) (islower(c) || isupper(c))
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#define iscntrl(c) ((c) <= 0x1f || (c) == 0x7f)
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#define isdigit(c) ((c) >= '0' && (c) <= '9')
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#define isgraph(c) ((c) > ' ' && (c) < 0x7f)
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#define islower(c) ((c) >= 'a' && (c) <= 'z')
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#define isprint(c) ((c) >= ' ' && (c) < 0x7f)
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#define ispunct(c) (((c) >= '!' && (c) <= '/') || \
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((c) >= ':' && (c) <= '@') || \
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((c) >= '[' && (c) <= '`') || \
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((c) >= '{' && (c) <= '~'))
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#define isspace(c) (((c) >= '\t' && (c) <= '\r') || (c) == ' ')
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#define isupper(c) ((c) >= 'A' && (c) <= 'Z')
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#define isxdigit(c) (((c) >= '0' && (c) <= '9') || \
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((c) >= 'A' && (c) <= 'F') || \
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((c) >= 'a' && (c) <= 'f'))
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// Character manipulation macros.
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#define tolower(c) (isupper(c) ? (c) | 32 : (c))
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#define toupper(c) (islower(c) ? (c) & ~32 : (c))
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#endif // _CTYPE_H
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