order-of-execution Questions
7
Solved
Okay, I'm aware that the standard dictates that a C++ implementation may choose in which order arguments of a function are evaluated, but are there any implementations that actually 'take advantage...
Simonton asked 7/3, 2009 at 8:41
6
Solved
Introduction
In every textbook on C/C++, you'll find an operator precedence and associativity table such as the following:
http://en.cppreference.com/w/cpp/language/operator_precedence
One of the ...
Comyns asked 24/12, 2013 at 23:27
5
Solved
If I have external stylesheets being included in the <head></head> section of my HTML page, will they be loaded before the HTML and immediately applied upon rendering? Let me present my...
Incorrigible asked 27/6, 2011 at 23:37
4
Solved
If we define webapp specific servlet filters in WAR's own web.xml, then the order of execution of the filters will be the same as the order in which they are defined in the web.xml.
But, if we def...
Ventail asked 3/7, 2011 at 3:38
4
int& foo() {
printf("Foo\n");
static int a;
return a;
}
int bar() {
printf("Bar\n");
return 1;
}
void main() {
foo() = bar();
}
I am not sure which one should be evaluated first.
I h...
Mond asked 28/11, 2011 at 11:33
5
Solved
I was wondering about the execution path of a java try-catch statement, and couldn't find details on the following situation.
If I have a statement such as:
try {
// Make a call that will throw...
Theobald asked 28/6, 2014 at 14:6
3
Solved
When defining variables and functions within a class in python 3.x does it matter in which order you define variables and functions?
Is class code pre-complied before you would call the class in ma...
Diallage asked 14/3, 2015 at 23:57
3
Solved
Let's say I have two functions in my script: sum_numbers and print_sum. Their implementation is like this:
def sum_numbers(a, b):
return a + b
def print_sum(a, b):
print(sum_numbers(a, b))
So...
Eucharis asked 7/6, 2017 at 22:30
2
Solved
I'm trying to extract UK postcodes from address strings in R, using the regular expression provided by the UK government here.
Here is my function:
address_to_postcode <- function(addresses) {...
Carving asked 13/8, 2018 at 18:45
2
Solved
I manage an open source project and have a user reporting a situation which I think is impossible according to Java's order of initialization of static variables in classes. The value of a static f...
Hyperventilation asked 16/7, 2021 at 20:59
3
Solved
From Real World Haskell I read
It operates as follows: when a seq expression is evaluated, it forces its first argument to be evaluated, then returns its second argument. It doesn't actually do an...
Strontium asked 4/4, 2021 at 16:58
2
Solved
I am learning C so I tried the below code and am getting an output of 7,6 instead of 6,7. Why?
#include <stdio.h>
int f1(int);
void main()
{
int b = 5;
printf("%d,%d", f1(b), f1(b));
}
int...
Raddie asked 12/6, 2019 at 9:49
2
Solved
OK, I have some code that seems to work but I'm not sure it will always work. I'm moving a unique_ptr into a stl map using one of the members of the class as the map key, but I'm not sure whether t...
Cushing asked 3/4, 2020 at 16:6
5
Solved
Looking at this code:
static int global_var = 0;
int update_three(int val)
{
global_var = val;
return 3;
}
int main()
{
int arr[5];
arr[global_var] = update_three(2);
}
Which array entry ...
Northeastward asked 13/1, 2020 at 19:15
1
Solved
Does C++ spec specify the order operator new and the constructor of A in new C(A()).
The g++ let the order be A() -> new -> C(), but clang++ let it be new -> A() -> C().
Is the difference caused by...
Diver asked 23/12, 2019 at 9:2
5
Solved
Does the following program have undefined behavior in C++17 and later?
struct A {
void f(int) { /* Assume there is no access to *this here */ }
};
int main() {
auto a = new A;
a->f((a->~...
Wagshul asked 23/9, 2019 at 15:58
2
Solved
public static void main(String[] args) {
int A=5;
int B=2;
A *= B*= A *= B ;
System.out.println(A);
System.out.println(B);
}
When I calculated this problem on paper I found A=200 B=20, but...
Spessartite asked 22/8, 2019 at 22:27
1
Solved
Taking as example
void f(B b, A&& a) {...}
B g(B b, A a) {...}
int main() {
B b;
A a;
f(g(b, a), std::move(a));
}
I presume this would be valid code seeing as an std::move() is merel...
Muslin asked 21/7, 2019 at 10:27
2
Solved
I understand that when I call a function such as
a(b(),c());
then the behavior of this may be undefined in <= C++14, and unspecified in >= C++17, in the sense that it is up to the comp...
Fastigium asked 24/5, 2019 at 9:40
3
Solved
var a = {}
var b = {}
try{
a.x.y = b.e = 1 // Uncaught TypeError: Cannot set property 'y' of undefined
} catch(err) {
console.error(err);
}
console.log(b.e) // 1
var a = {...
Gloom asked 12/2, 2019 at 9:14
3
Solved
What are the implications of the voted in C++17 evaluation order guarantees (P0145) on typical C++ code?
What does it change about things like the following?
i = 1;
f(i++, i)
and
std::cout <<...
Ibis asked 21/7, 2016 at 10:21
17
How to customize the order of execution of tests in TestNG?
For example:
public class Test1 {
@Test
public void test1() {
System.out.println("test1");
}
@Test
public void test2() {
System...
Overlooker asked 19/4, 2010 at 17:39
3
Solved
the following code:
myQueue.enqueue('a');
myQueue.enqueue('b');
cout << myQueue.dequeue() << myQueue.dequeue();
prints "ba" to the console
while:
myQueue.enqueue('a');
myQueue.enqu...
Quesada asked 24/1, 2010 at 22:44
6
Solved
If we have three functions (foo, bar, and baz) that are composed like so...
foo(bar(), baz())
Is there any guarantee by the C++ standard that bar will be evaluated before baz?
Lais asked 29/5, 2010 at 11:55
9
Okay, so I appreciate that Javascript is not C# or PHP, but I keep coming back to an issue in Javascript - not with JS itself but my use of it.
I have a function:
function updateStatuses(){
show...
Herron asked 14/4, 2010 at 13:18
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