| .. title:: clang-tidy - cppcoreguidelines-pro-type-vararg |
| |
| cppcoreguidelines-pro-type-vararg |
| ================================= |
| |
| This check flags all calls to c-style vararg functions and all use of |
| ``va_arg``. |
| |
| To allow for SFINAE use of vararg functions, a call is not flagged if a literal |
| 0 is passed as the only vararg argument. |
| |
| Passing to varargs assumes the correct type will be read. This is fragile |
| because it cannot generally be enforced to be safe in the language and so relies |
| on programmer discipline to get it right. |
| |
| This rule is part of the "Type safety" profile of the C++ Core Guidelines, see |
| https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Pro-type-varargs. |
