昆明曙光派出所:请问哪位能帮我解释一下这段代码？感谢感谢！！

什么语言的 什么环境的?

ASSERT
ASSERT( booleanExpression )

Parameters

booleanExpression

Specifies an expression (including pointer values) that evaluates to nonzero or 0.

Remarks

Evaluates its argument. If the result is 0, the macro prints a diagnostic message and aborts the program. If the condition is nonzero, it does nothing.

The diagnostic message has the form

assertion failed in file <name> in line <num>

where name is the name of the source file, and num is the line number of the assertion that failed in the source file.

In the Release version of MFC, ASSERT does not evaluate the expression and thus will not interrupt the program. If the expression must be evaluated regardless of environment, use the VERIFY macro in place of ASSERT.

Note This function is available only in the Debug version of MFC.

Example

// example for ASSERT
CAge* pcage = new CAge( 21 ); // CAge is derived from CObject.
ASSERT( pcage!= NULL )
ASSERT( pcage->IsKindOf( RUNTIME_CLASS( CAge ) ) )
// Terminates program only if pcage is NOT a CAge
来自于MSDN6.0