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**elegant way to get a variables limit**without wasting too much if your time.The question is published on by Tutorial Guruji team.

is there an better way to set a variables to one of its limits than

varname = std::numeric_limits<decltype(varname)>::max();

especially when initializing

int64_t varname = std::numeric_limits<decltype(varname)>::max();

I normally do not want to use the type in such expressions since its easy to miss this if type is changed.

## Answer

Re

”I normally do not want to use the type in such expressions since its easy to miss this if type is changed.

that’s easy:

auto varname = std::numeric_limits<int64_t>::max();

You can reduce the verbosity of `std::numeric_limits`

in many ways, e.g. by an template alias or by defining a function template.

template< class Type > using Limits_ = std::numeric_limits<Type>; auto varname = Limits_<int64_t>::max();

or

template< class Type > constexpr auto max_of() -> Type { return std::numeric_limits<Type>::max(); } auto varname = max_of<int64_t>();

In C++14 and later you can make `max_of`

a template variable, which for some reason that I’ve never seen explained, some people prefer.

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