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| 18.12.1.isxdigit |
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| Item | Value | | Header file | ctype.h | | Declaration | int isxdigit(int ch); | | Return | returns nonzero if ch is a hexadecimal digit; otherwise zero is returned. |
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A hexadecimal digit will be in one of these ranges: A-F, a-f, or 0-9. |
#include <ctype.h>
#include <stdio.h>
int main(void)
{
char ch;
for(;;) {
ch = getchar();
if(ch == '.'){
break;
}
if(isxdigit(ch))(){
printf("%c is hexadecimal digit\n", ch);
}
}
return 0;
}
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| 18.12.isxdigit | | 18.12.1. | isxdigit | | |
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