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authorAndreas Rumpf <rumpf_a@web.de>2016-03-01 23:07:22 +0100
committerAndreas Rumpf <rumpf_a@web.de>2016-03-01 23:07:22 +0100
commit312281c7cc19bf467207af93a13e9acdd9b34c60 (patch)
tree6e92ced9dddbcf998dbb296abf497fc81f9d2c7f /tests
parent9687ea3c3e46160e44195a91922de2089cb50874 (diff)
downloadNim-312281c7cc19bf467207af93a13e9acdd9b34c60.tar.gz
fixes #3686
Diffstat (limited to 'tests')
-rw-r--r--tests/concepts/tmonoid.nim13
1 files changed, 13 insertions, 0 deletions
diff --git a/tests/concepts/tmonoid.nim b/tests/concepts/tmonoid.nim
new file mode 100644
index 000000000..49b3239bd
--- /dev/null
+++ b/tests/concepts/tmonoid.nim
@@ -0,0 +1,13 @@
+discard """
+  output: '''true'''
+"""
+
+# bug #3686
+
+type Monoid = concept x, y
+  x + y is type(x)
+  type(z(type(x))) is type(x)
+
+proc z(x: typedesc[int]): int = 0
+
+echo(int is Monoid)