Complete Modern C++ - static_assert (C++11)

The video tutorial introduces the concept of static assert, a compile-time assertion mechanism in C++. It explains how static assert can be used to evaluate expressions at compile time, providing a diagnostic message if the expression is false. The tutorial demonstrates its application in ensuring code is compiled in 32-bit mode and checking type traits, such as verifying if a type is a floating point. By using static assert, developers can prevent compilation errors and enforce specific conditions during the compilation process.

What is the primary advantage of using static assert over regular assertions?

• It simplifies code readability.

• It allows for runtime error checking.

• It improves program execution speed.

• It provides compile-time error checking.

In the context of static assert, what happens if the expression evaluates to false?

• The program continues to run with a warning.

• The expression is ignored.

• The program aborts at runtime.

• The compiler displays a message and stops compilation.

How does static assert help in ensuring code is compiled in 32-bit mode?

• By checking the size of a pointer at compile time.

• By aborting the program if not in 32-bit mode.

• By checking the size of a pointer at runtime.

• By allowing compilation in any mode.

What is the role of type traits when used with static assert?

• To perform runtime type checks.

• To provide compile-time type information.

• To enhance program performance.

• To simplify code syntax.

In the example provided, what type of data is supported by the static assert check?

• Integral types

• Character types

• Floating point types

• String types