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# frozen_string_literal: false
require_relative 'base'
class TestMkmf
class TestTryConstant < TestMkmf
def test_simple
assert_equal( 0, mkmf {try_constant("0")}, MKMFLOG)
assert_equal( 1, mkmf {try_constant("1")}, MKMFLOG)
assert_equal(-1, mkmf {try_constant("-1")}, MKMFLOG)
end
def test_sizeof
assert_equal(config_value("SIZEOF_INT").to_i, mkmf {try_constant("sizeof(int)")}, MKMFLOG)
assert_equal(config_value("SIZEOF_LONG").to_i, mkmf {try_constant("sizeof(long)")}, MKMFLOG)
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
def test_large_unsigned
assert_operator(mkmf {try_constant("1U<<(CHAR_BIT*sizeof(int)-1)")}, :>, 0, MKMFLOG)
end
end
end
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