Ñ++ äëÿ íà÷èíàþùèõ
Èíñòðóêöèÿ switch - ÷àñòü 6
Óïðàæíåíèå 5.7
Íàéäèòå è èñïðàâüòå îøèáêè â ñëåäóþùèõ ïðèìåðàõ:
(a)
switch ( ival ) {
case 'a': aCnt++;
case 'e': eCnt++;
default: iouCnt++;
}
(b)
switch ( ival ) {
case 1:
int ix = get_value();
ivec[ ix ] = ival;
break;
default:
ix = ivec.sizeQ-1;
ivec[ ix ] = ival;
}
(c)
switch ( ival ) {
case 1, 3, 5, 7, 9:
oddcnt++;
break;
case 2, 4, 6, 8, 10:
evencnt++;
break;
}
(d)
int iva1=512 jva1=1024, kva1=4096;
int bufsize;
// ...
switch( swt ) {
case ival:
bufsize = ival * sizeof( int );
break;
case jval:
bufsize = jval * sizeof( int );
break;
case kval:
bufsize = kval * sizeof( int );
break;
}
(e)
enum { illustrator = 1, photoshop, photostyler = 2 };
switch ( ival ) {
case illustrator:
--i11us_1icense;
break;
case photoshop:
--pshop_1icense;
break;
case photostyler:
--psty1er_license;
break;
|
} |
