operator-precedence

I was studying operator precedence and I am not able to understand how the value of x became 2 and that of y and z is 1 x=y=z=1; z=++x||++y&&++z; This evaluates to x=2 y=1 z=1 ++ has higher priority than || , so the whole RHS of the assignment boils down to an increment of x and an evaluation to a truth value (1). z = ++x || ++y&&++z; truthy (1) never executed This is because ++x evaluates to true and the second branch is not executed. ++x is 2 which, in a boolean context, evaluates to true or 1 . z takes the value of 1 , giving you the observed final state. x=y=z=1 z=++x||++y&&++z is

In previous versions of the standard (C++03) the order of evaluation of parameters to a function call was unspecified. Has this been changed in subsequent version of the standard (C++11 or C++14)? i.e. Can we rely on a specific ordering (left to right) or not. No this has not changed but there is a very recent proposal to change this: N4228: Refining Expression Evaluation Order for Idiomatic C++ , this was part of the Pre-Urbana mailing that came out this October The introduction says ( emphasis mine going forward ): Expression evaluation order is a recurring discussion topic in the C++

int main() { int i=3; (++i)++; printf("%d",i); } This programs works with g++ compiler but not gcc. If i write i++++ or ++i++ it doesn't work in cpp also. I think there is difference between c-expression and c++-expression. Can somebody explain about L-value and R-value ? Edit: This answer is incorrect for the updated question, it applies to the question as originally stated. (i++)++ shouldn't work with either gcc or g++, whether or not they are parsing the file as C or C++ in both languages postfix increment requires an lvalue as an operand and the result is an rvalue . (Note that rvalue is

I've searched the web but I've found no solution to this problem. What is the logical priority for operators NAND , NOR and XNOR ? I mean, considering as example the expression A AND B NAND C which operator should be evaluated first? Obviously NAND can be translated as NOT-AND (as NOR is NOT-OR and XNOR is NOT-XOR ), but (A AND B) NAND C != A AND (B NAND C) = A AND NOT(B AND C) According to my researches there's no a defined priority for such an expression, so I think the simplest solution is to evaluate the operators according to the order they appear in the expression, but I may be wrong.

I've noticed some scripts seem to be called before others on a certain page, I was wondering, what is the specific order for scripts to load? In-page before referenced .js scripts? Are they run in order from first <script> mentioned to last in page, or Is this browser-dependent? How can one make sure that a specific script is first to run in a page? I've noticed some scripts seem to be called before others on a certain page. I was wondering, what is the specific order for scripts to load? This is set by W3C in their language specifications. For the HTML 4.01 Specification , for instance, it's