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#include <ctype.h> bit isprint ( char c); /* character to test */
The isprint function tests c to determine if it is a printable character (0x20-0x7E).
The isprint function returns a value of 1 if c is a printable character or a value of 0 if it is not.
isalnum, isalpha, iscntrl, isdigit, isgraph, islower, ispunct, isspace, isupper, isxdigit
#include <ctype.h> #include <stdio.h> /* for printf */ void tst_isprint (void) { unsigned char i; char *p; for (i = 0; i < 128; i++) { p = (isprint (i) ? "YES" : "NO"); printf ("isprint (%c) %s\n", i, p); } }
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