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-rw-r--r--test/mkmf/test_constant.rb15
1 files changed, 15 insertions, 0 deletions
diff --git a/test/mkmf/test_constant.rb b/test/mkmf/test_constant.rb
index bf5ff8c..6628f7f 100644
--- a/test/mkmf/test_constant.rb
+++ b/test/mkmf/test_constant.rb
@@ -14,5 +14,20 @@ class TestMkmf
assert_equal(config_value("SIZEOF_VOIDP").to_i, mkmf {try_constant("sizeof(void*)")}, MKMFLOG)
assert_equal(config_value("SIZEOF_VALUE").to_i, mkmf {try_constant("sizeof(Qnil)")}, MKMFLOG)
end
+
+ def test_long
+ sizeof_int = config_value("SIZEOF_INT").to_i
+ sizeof_long = config_value("SIZEOF_LONG").to_i
+ if sizeof_long > sizeof_int
+ type = 'long'
+ else
+ sizeof_long_long = config_value("SIZEOF_LONG_LONG").to_i
+ return if !sizeof_long_long or sizeof_long_long <= sizeof_int
+ type = 'LONG_LONG'
+ end
+
+ decl = "#define CONFTEST_VALUE (unsigned #{type})(((unsigned #{type})1)<<(CHAR_BIT*sizeof(int)))"
+ assert_operator(mkmf {try_constant("CONFTEST_VALUE", [[decl]])}, :>, 0, MKMFLOG)
+ end
end
end