看这个:

'On Error Goto Hell.

发现了一个复杂的代码-

//耶稣和这段代码有一个共同点:都是复活的

来自Linux内核源代码:

linux /包括/ asm-i386 / hw_irq。h:

/*
 * subtle. orig_eax is used by the signal code to distinct between
 * system calls and interrupted 'random user-space'. Thus we have
 * to put a negative value into orig_eax here. (the problem is that
 * both system calls and IRQs want to have small integer numbers in
 * orig_eax, and the syscall code has won the optimization conflict ;)
 *
 * Subtle as a pigs ear.  VY
 */

//If the Current Record is Getting End Dated, We should not create New History Entry. 
//We Just need to Update the Previous History Entry
//If the History is already End Dated and the New Record is now removing End Date, Then 
//We should not update the Previous History End Date. 
//We Just need to Create the New History Record Only.
//Alright.. 
//Alright.... 
//Enough Comments. Code it. :-)

struct core_unlocker
{
    core_unlocker(lock)
    {
        m_lock = lock
        unlock(lock)  //Abandon All Locks, Ye Who Enter Core!
    }
    ~core_unlocker()
    {
        lock(m_lock)
    }  
    private:
    Corelock m_lock;
}

在OLTP数据库事务的主要触发代码中找到:

-- This line negates the @inverseqty, which is the
-- negative of the @insertedquantity.  This works through the
-- magic of the trigger.  In fact, this code is a lot like
-- the bermuda triangle!
@negquantity = -1 * @inverseqty