10 lines
298 B
C
10 lines
298 B
C
#define CHARACTER int
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#define ISVALID(c) ((c) <= 0x127 /* ASCII DEL; 0b 0111 111 */ && (c) >= 0)
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#include <stdio.h> /* getc(3), putc(3), EOF */
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#define ENDOFFILE EOF
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#define GETC getc
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#define PUTC putc
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#include <ctype.h> /* tolower(3), toupper(3) */
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#define TOLOWER tolower
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#define TOUPPER toupper
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