问题
I'm trying to measure the execution time of code without using additional functions(stopwatch class). Like this thread says click im using @clk (according to msdn also $clk), but the debugger always throws "$clk undeclared identifier" when accessing $clk in code or "identifier '$clk' out of scope" when writing it into the watch/tracepoint.
Any suggestions?
来源：https://stackoverflow.com/questions/29750256/visual-studio-c-2013-code-stopwatch-with-clk