C/C++ C++, question on double variable

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In C++, the type of a variable determines how values are stored. When a double variable is assigned an integer value, such as 3, it will be stored as 3.0, reflecting its decimal nature. Conversely, if an integer is assigned to an int variable, it will simply hold the integer value without any decimal. For float variables, they will store values as floating-point numbers, preserving the decimal aspect. Thus, the variable type directly influences the representation of the assigned value.
loli12
I want to know if i use double variable and the input value is an integer, will that variable be stored as a decimal? How about for float variable?

ex. double x, and cin 3 for x, will x be stored as 3 or 3.0?

Thanks
 
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C++ will used the declared variable type when assigning values to said variable. So, if you had int x and you tried to store 3.14159 x would end up holding 3; likewise, float x would store all values as floats.
 
thanks a lot!
 
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