Assert

Test for condition or expression to be true, a stmt node.

Declaration

Syntax

Assert(expr test, expr? msg)

Arguments

test contains the expression or condition to be tested for true. msg contains the error message if the condition tested is not true and assert fails.

Return values

None.

Описание

Assert statement consists of the assert keyword, the expression or conditoon to test, and an optional message. The condtion or expression being tested is always true. If the assertion expression or conditoon is true, nothing happens and the program unit continues to normal executions otherwise the program unit is halted and aborted at assert statement, when it fails.

Types

Expression for condtion and message to be printed.

Examples

program assert
implicit none
ASSERT(.true.)
end program

ASR:

See Also