Make some casts explicit to keep VC++ 7 happy

[p5sagit/p5-mst-13.2.git] / t / op / grep.t

diff --git a/t/op/grep.t b/t/op/grep.t
index 3a7f8ad..3e5d716 100755 (executable)
--- a/t/op/grep.t
+++ b/t/op/grep.t
@@ -4,7 +4,7 @@
 # grep() and map() tests
 #
 
-print "1..27\n";
+print "1..38\n";
 
 $test = 1;
 
@@ -97,3 +97,73 @@ sub ok {
              { $_ & "X" } ("ok $test\n");
    $test++;
 }
+
+# Tests for "for" in "map" and "grep"
+# Used to dump core, bug [perl #17771]
+
+{
+    my @x;
+    my $y = '';
+    @x = map { $y .= $_ for 1..2; 1 } 3..4;
+    print "# @x,$y\n";
+    print "@x,$y" eq "1 1,1212" ? "ok $test\n" : "not ok $test\n";
+    $test++;
+    $y = '';
+    @x = map { $y .= $_ for 1..2; $y .= $_ } 3..4;
+    print "# @x,$y\n";
+    print "@x,$y" eq "123 123124,123124" ? "ok $test\n" : "not ok $test\n";
+    $test++;
+    $y = '';
+    @x = map { for (1..2) { $y .= $_ } $y .= $_ } 3..4;
+    print "# @x,$y\n";
+    print "@x,$y" eq "123 123124,123124" ? "ok $test\n" : "not ok $test\n";
+    $test++;
+    $y = '';
+    @x = grep { $y .= $_ for 1..2; 1 } 3..4;
+    print "# @x,$y\n";
+    print "@x,$y" eq "3 4,1212" ? "ok $test\n" : "not ok $test\n";
+    $test++;
+    $y = '';
+    @x = grep { for (1..2) { $y .= $_ } 1 } 3..4;
+    print "# @x,$y\n";
+    print "@x,$y" eq "3 4,1212" ? "ok $test\n" : "not ok $test\n";
+    $test++;
+
+    # Add also a sample test from [perl #18153].  (The same bug).
+    $a = 1; map {if ($a){}} (2);
+    print "ok $test\n"; # no core dump is all we need
+    $test++;
+}
+
+{
+    sub add_an_x(@){
+        map {"${_}x"} @_;
+    };
+    ok join("-",add_an_x(1,2,3,4)), "1x-2x-3x-4x";
+    $test++;
+}
+
+{
+    my $gimme;
+
+    sub gimme {
+       my $want = wantarray();
+       if (defined $want) {
+           $gimme = $want ? 'list' : 'scalar';
+       } else {
+           $gimme = 'void';
+       }
+    }
+
+    my @list = 0..9;
+
+    undef $gimme; gimme for @list;      ok($gimme, 'void');   $test++;
+    undef $gimme; grep { gimme } @list; ok($gimme, 'scalar'); $test++;
+    undef $gimme; map { gimme } @list;  ok($gimme, 'list');   $test++;
+}
+
+{
+    # This shouldn't loop indefinitively.
+    my @empty = map { while (1) {} } ();
+    ok("@empty", '');
+}