Programming Forums - View Single Post

DaWei · Feb 18th, 2006, 5:39 PM

Ever hear of "for (;;);"? In the absence of optimization it's a more efficient coding of an infinite loop than "while (1);" Why? No expression evaluation.

VC++ assembly code emitted:

(Toggle Plain Text)

0040DD74   jmp         main+34h (0040dd74)

Feb 18th, 2006, 5:39 PM	#10
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	Ever hear of "for (;;);"? In the absence of optimization it's a more efficient coding of an infinite loop than "while (1);" Why? No expression evaluation. VC++ assembly code emitted: (Toggle Plain Text) 0040DD74 jmp main+34h (0040dd74) 0040DD74 jmp main+34h (0040dd74) __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers