================ @@ -0,0 +1,30 @@ +.. title:: clang-tidy - bugprone-unintended-char-ostream-output + +bugprone-unintended-char-ostream-output +======================================= + +Finds unintended character output from ``unsigned char`` and ``signed char`` to an +``ostream``. + +Normally, when ``unsigned char (uint8_t)`` or ``signed char (int8_t)`` is used, it +is more likely a number than a character. However, when it is passed directly to +``std::ostream``'s ``operator<<``, resulting in character-based output instead +of numeric value. This often contradicts the developer's intent to print +integer values. + +.. code-block:: c++ + + uint8_t v = 9; + std::cout << v; // output '\t' instead of '9' + +It could be fixed as + +.. code-block:: c++ + + std::cout << (uint32_t)v; ---------------- carlosgalvezp wrote:
Nit: since we are in C++, it would be good to use C++ casts, i.e. `static_cast<std::uint32_t>(v)` https://github.com/llvm/llvm-project/pull/127720 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
