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c++ templates

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February 5, 2026 Score: 6 Rep: 48,914 Quality: Medium Completeness: 70%

You can use the [[deprecated]] in the said explicit specialization(s) as shown below:

template struct C
{
};
template struct [[deprecated]] C{};
C< bool, 5> obj1; //gives warning 
template struct C{};
C obj2; //no warning

Working demo. This works with all three compilers(gcc, clang and msvc). With this gcc will generate the following warning:

warning: 'C' is deprecated [-Wdeprecated-declarations]
    6 | C< bool, 5> obj_1; //gives warning
      |             ^~~~

Note that with msvc you'll need to use /W3.