1import lldb 2from lldbsuite.test.decorators import * 3from lldbsuite.test.lldbtest import * 4from lldbsuite.test import lldbutil 5 6 7class TestCPP20Standard(TestBase): 8 @add_test_categories(["libc++"]) 9 @skipIf(compiler="clang", compiler_version=["<", "11.0"]) 10 def test_cpp20(self): 11 """ 12 Tests that we can evaluate an expression in C++20 mode 13 """ 14 self.build() 15 lldbutil.run_to_source_breakpoint(self, "Foo{}", lldb.SBFileSpec("main.cpp")) 16 17 self.expect( 18 "expr -l c++11 -- Foo{} <=> Foo{}", 19 error=True, 20 substrs=[ 21 "'<=>' is a single token in C++20; add a space to avoid a change in behavior" 22 ], 23 ) 24 25 self.expect("expr -l c++20 -- Foo{} <=> Foo{}", substrs=["(bool) $0 = true"]) 26