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What is the difference between a bool and a bool?

The values for a bool are true and false, whereas for BOOL you can use any int value, though TRUE and FALSE macros are defined in the windef.h header. This means that the sizeof operator will yield 1 for bool (the standard states, though, that the size of bool is implementation defined), and 4 for BOOL. Show activity on this post.

How to create a bool in C++?

You can create a bool using enum. One enum will be created as bool, then put the elements of enum as True and False respectively. The false will be at the first position, so it will hold 0, and true will be at the second position, so it will get value 1.

What is the difference between AutoCAD Bool and Bool?

bool can contain only true and false values while bool? can also have a null value. bool means you can have values of true and false. bool? means you can have a value of true, false, and null. It works for datetime and booleans. Thanks for contributing an answer to Stack Overflow!

What is the difference between nullable and Bool?

bool is a value type, this means that it cannot be null, so the Nullable type basically allows you to wrap value types, and being able to assign null to them. bool? can contain three different values: true, false and null.

What is the difference between Bool and bool in C++?

What is the difference between BOOL and bool? Bookmark this question. Show activity on this post. In VC++ we have the data type “BOOL” which can assume the value TRUE or FALSE, and we have the data type “bool”, which can assume the value true or false. What is the difference between them and when should each data type be used?

What is the meaning of @@ Bool?

bool? means the boolean is nullable and is syntactic sugar for a stucture Nullable. Because a boolean is a value type, you cannot set it to null, but there are some cases where youd want to like in a data access class because database fields can have null values.

What is the difference between a Boolean and an object?

The only real difference is storage. An object will always take up more memory than a primitive type, but in reality, changing all your Boolean values to bool isnt going to have any noticeable impact on memory usage. I was wrong; thats how it works in java with boolean and Boolean. In C#, bool and Boolean are both reference types.

What is the difference betweenBoolandBoolean?

Most C# programmers tend to prefer bool, but if you are in a shop where theres a lot of both VB.Net and C# then you may prefer Boolean because it works in both places. As has been said, they are the same. There are two because bool is a C# keyword and Boolean a .Net class. One is an alias for the other. bool is an alias for the Boolean class.

What is the difference between Bool and bool in C++?

What is the difference between BOOL and bool? Bookmark this question. Show activity on this post. In VC++ we have the data type “BOOL” which can assume the value TRUE or FALSE, and we have the data type “bool”, which can assume the value true or false. What is the difference between them and when should each data type be used?

What is a Boolean type?

The C programming language uses “int” as its boolean type, and Windows 1.0 was written back when C was the cool language for systems programming. Next came BOOLEAN . This type was introduced by the OS/2 NT team when they decided to write a new operating system from scratch.

What is the difference between Int32 and Bool?

bool is an alias for System.Boolean like int is an alias for System.Int32. bool comes in dark blue is because it is a C# keyword, and Boolean in light blue is because its a type (inbuild application types and user-defined types). If you like my post mark it as ANSWER. Are you working with C# or VB? In C#, bool is a type.

What is the meaning of @@ Bool?

bool? means the boolean is nullable and is syntactic sugar for a stucture Nullable. Because a boolean is a value type, you cannot set it to null, but there are some cases where youd want to like in a data access class because database fields can have null values.

bool is a value type, this means that it cannot be null, so the Nullable type basically allows you to wrap value types, and being able to assign null to them. bool? can contain three different values: true, false and null. Also, there are no short-circuiting operators (&& ||) defined for bool?

Is it possible to set a boolean value to null?

2 Its a good answer but can I suggest that you make it clear that bool? is also a value type, its actually a structure which contains somethng like {T value; bool _hasValue} – AnthonyWJones Jul 25 09 at 7:57

What is the meaning of @@ Bool?

bool? means the boolean is nullable and is syntactic sugar for a stucture Nullable. Because a boolean is a value type, you cannot set it to null, but there are some cases where youd want to like in a data access class because database fields can have null values.

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