Evaluates BLOCK or EXPR in list context

##</code><code>##

print "A:";
print map { /(\S+)/g or die } qq{ab cd}; # prints "A:1" so evaluated in scalar context
print "\n";

print "B:";
print map { /(\S+)/g  } qq{ab cd}; # prints "B:abcd", means evaluated in list context
print "\n";

print "C:";
for (qq{ab cd}) {
    print /(\S+)/g or die; # prints "C:abcd", list context again
}
print "\n";