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20 lines
235 B
C
20 lines
235 B
C
#ifndef _CTYPE_H
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#define _CTYPE_H 1
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#ifdef __cplusplus
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extern "C" {
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#endif
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int isdigit(int c);
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int islower(int c);
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int isspace(int c);
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int isupper(int c);
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int tolower(int c);
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int toupper(int c);
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#ifdef __cplusplus
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}
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#endif
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#endif
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