# Ultimate C++ Understanding size\_t

**URL:** <https://forum.codewithmosh.com/t/ultimate-c-understanding-size-t/28280>\
**Category:** C++\
**Created:** [August 16, 2024, 9:31pm UTC](https://forum.codewithmosh.com/t/ultimate-c-understanding-size-t/28280 "2024-08-16T21:31:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Zatharis](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.codewithmosh.com/zatharis/32/8551_2.png) [@Zatharis](https://forum.codewithmosh.com/u/Zatharis)\
**Post date:** [August 16, 2024, 9:31pm UTC](https://forum.codewithmosh.com/t/ultimate-c-understanding-size-t/28280/1 "2024-08-16T21:31:24Z")

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This is more a question of curiosity, since these lessons appear to maybe be a little outdated. but what do I do to make this work? it says all my numeric\_limits are incomplete.

My follow along:

 ![my own copy](https://us1.discourse-cdn.com/flex020/uploads/codewithmosh/original/2X/5/5aa0ba8f9c54a4b86d5bf71861b0bea5428fef72.png)

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**Author:** ![POMPOMBALLS](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.codewithmosh.com/pompomballs/32/6610_2.png) [@POMPOMBALLS](https://forum.codewithmosh.com/u/POMPOMBALLS)\
**Post date:** [August 17, 2024, 7:31am UTC](https://forum.codewithmosh.com/t/ultimate-c-understanding-size-t/28280/2 "2024-08-17T07:31:17Z")

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[`std::numeric_limits`](https://en.cppreference.com/w/cpp/types/numeric_limits) is defined in the header [`<limits>`](https://en.cppreference.com/w/cpp/header/limits).

Add `<limits>` header.

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<div class="post-metadata">

**Author:** ![Zatharis](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.codewithmosh.com/zatharis/32/8551_2.png) [@Zatharis](https://forum.codewithmosh.com/u/Zatharis)\
**Post date:** [August 19, 2024, 11:38pm UTC](https://forum.codewithmosh.com/t/ultimate-c-understanding-size-t/28280/3 "2024-08-19T23:38:26Z")

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Thank you very much 😀