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/* convert an arbitrary based number to an integer */
#include <ctype.h>
#include "tools.h"
/* p points to characters, return -1 if no good characters found
* and base is 2 <= base <= 16
*/
int ntoi (p, base)
char *p;
int base;
{
register int i, c;
flagType fFound;
if (base < 2 || base > 16)
return -1;
i = 0;
fFound = FALSE;
while (c = *p++) {
c = tolower (c);
if (!isxdigit (c))
break;
if (c <= '9')
c -= '0';
else
c -= 'a'-10;
if (c >= base)
break;
i = i * base + c;
fFound = TRUE;
}
if (fFound)
return i;
else
return -1;
}
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