What is the difference between logical and conditional AND, OR in C#? [duplicate]

by

I prefer to think of it as “bitwise vs. conditional” rather than “logical vs conditional” since the general concept of “logical” applies in both cases.

x & y    // bitwise AND, 0101 & 0011 = 0001
x | y    // bitwise OR,  0101 | 0011 = 0111

x && y   // true if both x and y are true
x || y   // true if either x or y are true

Edit

By popular demand, I should also mention that the arguments are evaluated differently. In the conditional version, if the result of the entire operation can be determined by the first argument, the second argument is not evaluated. This is called short-circuit evaluation. Bitwise operations have to evaluate both sides in order to compute the final value.

For example:

x.foo() && y.bar()

This will only call y.bar() if x.foo() evaluates to true. Conversely,

x.foo() || y.bar()

will only call y.bar() if x.foo() evaluates to false.

More Related Contents:

  1. Nullable types and the ternary operator: why is `? 10 : null` forbidden? [duplicate]
  2. Benefits of using the conditional ?: (ternary) operator
  3. Conditional operator cannot cast implicitly?
  4. Conditional operator assignment with Nullable types?
  5. Method Call using Ternary Operator
  6. Nullable type issue with ?: Conditional Operator
  7. How can I assign a Func conditionally between lambdas using the conditional ternary operator?
  8. C# conditional AND (&&) OR (||) precedence
  9. Is relying on && short-circuiting safe in .NET?
  10. Why is this code invalid in C#?
  11. In C# why can’t a conditional operator implicitly cast to a nullable type
  12. Unique ways to use the null coalescing operator [closed]
  13. Type result with conditional operator in C#
  14. Ternary operator is twice as slow as an if-else block?
  15. Is the conditional operator slow?
  16. Execution order of conditions in C# If statement
  17. A clear, layman’s explanation of the difference between | and || in c#?
  18. Is BitArray faster in C# for getting a bit value than a simple conjuction with bitwise shift?
  19. Why doesn’t the conditional operator correctly allow the use of “null” for assignment to nullable types? [duplicate]
  20. How to start a Process as administrator mode in C# [duplicate]
  21. Performance differences between debug and release builds
  22. ASP.NET MVC: No parameterless constructor defined for this object
  23. C# pass by value vs. pass by reference
  24. Set ApartmentState on a Task
  25. Override .ToString method c#
  26. Upload file and download file from FTP
  27. Inconsistent accessibility error with the following c# code. Why?
  28. Conversion of a decimal to double number in C# results in a difference
  29. Converting Color to ConsoleColor?
  30. Overload resolution issue for generic method with constraints

Leave a Comment