Top "Operator-precedence" questions

Operator Precedence refers to the rules governing the order in which operators are evaluated within an expression or statement in a programming language.

Pointer Arithmetic: ++*ptr or *ptr++?

I am learning C language and quite confused the differences between ++*ptr and *ptr++. For example: int x = 19; int *ptr = &…

c pointers increment dereference operator-precedence
"IF" argument evaluation order?

if(a && b) { do something; } is there any possibility to evaluate arguments from right to left(b -&…

c++ if-statement operator-precedence
Boolean operators precedence

I would like to know if operator precedence in programming languages depends on implementation or there is a fixed rule …

boolean operator-keyword operator-precedence
php string number concatenation messed up

I got some php code here: <?php echo 'hello ' . 1 + 2 . '34'; ?> which outputs 234, but when I add …

php string concatenation operator-keyword operator-precedence
Is short-circuiting logical operators mandated? And evaluation order?

Does the ANSI standard mandate the logical operators to be short-circuited, in either C or C++? I'm confused for I …

c++ c logical-operators short-circuiting operator-precedence
Haskell: Parse error in pattern

Who likes to tell me what is wrong with this code (syntactically)? -- merge two sorted lists mergeX [] b res = …

haskell pattern-matching operator-precedence parse-error
MySQL query / clause execution order

What is the predefined order in which the clauses are executed in MySQL? Is some of it decided at run …

mysql execution operator-precedence
Operator precedence in Scala

I like Scala's propose of operator precedence but in some rare cases, unmodified rules may be inconvenient, because you have …

scala operator-precedence
Make sure a Javascript script is first to run?

I've noticed some scripts seem to be called before others on a certain page, I was wondering, what is the …

javascript hoisting operator-precedence
Compilers and argument order of evaluation in C++

Okay, I'm aware that the standard dictates that a C++ implementation may choose in which order arguments of a function …

c++ operator-precedence