Re: More on the cosmetics (if-statements)

From:

"Victor Bazarov" <v.Abazarov@comAcast.net>

Newsgroups:

comp.lang.c++

Date:

Thu, 31 May 2007 10:01:33 -0400

Message-ID:

<f3mkfu$t8i$1@news.datemas.de>

Andre Kostur wrote:

desktop <fff@sss.com> wrote in news:f3mgvl$med$1@news.net.uni-c.dk:

Ok but what about this (assuming that there is no such thing as a
switch):

     int k = 40;

       /* Case 1. */
       if (k == 10) {
            std::cout << "1\n";
       } else
            /* Case 2. */
            if (k == 20) {
                 std::cout << "2\n";
       } else
            /* Case 3. */
            if (k == 30) {
                 std::cout << "3\n";
       } else
            /* Case 4. */
            if (k == 40) {
                 std::cout << "4\n";
       }

/* INSTEAD OF:*/

       /* Case 1: Only 1 element in the list. */
       if (k == 10) {
            std::cout << "1\n";
       } else {
            if (k == 20) {
                 std::cout << "2\n";
            } else {
                 if (k == 30) {
                      std::cout << "3\n";
                 } else {
                      if (k == 40) {
                           std::cout << "4\n";
                      }
                 }
            }
       }

Neither:

if (k == 10)
{
std::cout << "1\n";
}
else if (k == 20)
{
std::cout << "2\n";
}
else if (k == 30)
{
std::cout << "3\n";
}
else if (k == 40)
{
std::cout << "4\n";
}

For unsigned 'k':

std::cout << "01234"[k / 10 % 5] << "\n";

:-)

V
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