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By redd12314512346346 on the 16th of Apr 2009 08:57:26 PM
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/* Problem: Inefficient and confusing */
int foo(int bar)
{
int return_value = 0;
int doing_okay = 1;
doing_okay = do_something( bar );
if (doing_okay)
{
doing_okay = init_stuff();
}
if (doing_okay)
{
doing_okay = prepare_stuff();
}
if (doing_okay)
{
return_value = do_the_thing( bar );
}
return return_value;
}
/* Problem: Getting murdered by PHB's for using goto */
int foo(int bar)
{
if (!do_something( bar )) {
goto error;
}
if (!init_stuff( bar )) {
goto error;
}
if (!prepare_stuff( bar )) {
goto error;
}
return do_the_thing( bar );
error:
return 0;
}
/* Problem: Too many nested blocks, horrible */
int foo(int bar)
{
int return_value = 0;
if (do_something( bar )) {
if (init_stuff( bar )) {
if (prepare_stuff( bar )) {
return_value = do_the_thing( bar );
}
}
}
return return_value;
}
/* No obvious problems... */
int foo(int bar)
{
int return_value = 0;
do {
if (! do_something( bar )) break;
if (! init_stuff()) break;
if (! do_prepare_stuff()) break;
return_value = do_the_thing( bar );
} while (false);
return return_value;
}
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