All things not in the standard library (probably for good reason) but very useful. ACOUT << std::vector<int> x{1, 2, 3} becomes filename:linenumber:function: [1 2 3] for example.
All things not in the standard library (probably for good reason) but very useful. COUT << std::vector<int> x{1, 2, 3} becomes filename:linenumber:function: {1 2 3} for example.
All things not in the standard library (probably for good reason) but very useful. ACOUT << std::vector<int> x{1, 2, 3} becomes filename:linenumber:function: [1 2 3] for example.
All things not in the standard library (probably for good reason) but very useful. COUT << std::vector<int> x{1, 2, 3} becomes filename:linenumber:function: {1 2 3} for example.