How to make Visual Studio UI show the precise underlying float point numbers?

Question

Hi all,

int main() {  
    float a = 123.45;  
    return 0;  
}  

By default, the UI value will show an approximated number.

What's the option to show the precise underlying number (123.4499969482421875 rather than 123.44997)?

Answer 1

Hi, @John

You need to use double a = 123.45f; instead of float.
13 decimal places for double are reliable.
the difference:
123. 44999694824219 //13 . 14 is not unreliable
123. 4499969482421875

Best regards,

Minxin Yu

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