Declaring variables in the loop init

[PaulB7538]

Is it always best practise to declare and Initialise inside the for loop if you can?

[DanM]

Yes see this item and the previous one ES.5
https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#es6-declare-names-in-for-statement-initializers-and-conditions-to-limit-scope

This is why this feature was added to for loops after all. Not sure if it was pre-standard or C++98 but you used to have to write

int x;
for (x = 0; ...; ...)

It was only later that you could initialise it within the for.

[PaulB7538]

Thanks Dan