Difference between the define value?

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1.00/5 (2 votes)

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C++

+ const int* var = &v
+ int const* var = &v
+ const int *const var = &v

What I have tried:

what is the difference between this ?

Posted 16-Dec-20 21:40pm

Gautam Naresh

Updated 17-Dec-20 0:36am

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Richard MacCutchan · Accepted Answer · 2020-12-16T22:00:00

Solution 1

Try the documentation: c const pointer - Google Search[^]

Posted 16-Dec-20 22:00pm

Richard MacCutchan

CPallini · Accepted Answer · 2020-12-17T00:36:00

C

const int* var = &v; // var is a pointer to const int, it is initialized with v address
int const* var = &v; // var is a pointer to const int, it is initialized with v address
const int *const var = &v; // var is a const pointer to const int, initialized with v address

So, while the first two definitions are interchangeable, the third is a bit different.

You may easily verify yourself using cdecl: C gibberish ↔ English[^]