|
If I want to call Bar() instead of Foo(), does Bar() return me a copy (additional overhead) of what Foo() returns, or it returns the same object which Foo() places on the temporary stack?
vector<int> Foo(){ vector<int> result; result.push_...
Started by blizpasta on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
(41144Ch) return result; 0041193F lea eax,[ebp-24h] 00411942 push eax 00411943 mov ecx,dword ptr [ebp+8::allocator<int> >::vector<int,std::allocator<int> > (411050h)
When we get to return result.push_back(1); return....
|
|
Possible Duplicate:
return value of operator overloading in C++
Hi
I have a question about return by value and return by reference. It seems that functionally, they are the same thing. In some cases, return by reference is preferred. For example, assignment...
Started by skydoor on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
The op= allows return by reference since you are returning....
Return by value need not necessarily imply a copy, the standard specifically allows return value optimization (which is implemented by most modern compilers).
Object.
|
|
Is it better to have if / else if, if every block in the if statement returns, or is it better to have a chain of ifs? To be specific, which if fastest:
A:
if (condition1) { code1; return a; } if (condition2) { code2; return b; } //etc...
B:
if (condition...
Started by Claudiu on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at stackoverflow):
//jxx :toElse + 1 code; return....
//jxx :toEndIf code; return bar; return bar; //mov eax, bar //jmp :toEnd }
For the B case:
if(condition){ //conditionOp //cmp ...
If any:
For the A case:
if (condition){ //conditionOp //cmp ...
|
Ask your Facebook Friends
|
I am trying to implement paypal payment in as3. But the return variable conflicts with an as3 keyword. So how to set return variable for returning from paypal to merchant site.
Started by Shubham Goyal on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
The return variable may be defined["return"] = value; object["void"] = value;
Basically you can use any reserved keyword as property name.
With Paypal but I'll just answer with the most used system atm .
|
|
Try running the following code:
class Test(object): def func_accepting_args(self,prop,*args): msg = "%s getter/setter got called with args %s" % (prop,args) print msg #this is prented return msg #Why is None returned? def __getattr__(self,name): if name...
Started by Up on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
It should return the result of the wrapped func_accepting_args() :
def return_method(*args): return self.func_accepting_args(prop,*args)
Because return_method() doesn'....
return_method() doesn't return anything.
|
|
Let us say we have a function of the form:
const SomeObject& SomeScope::ReturnOurObject() { if( ! SomeCondition ) { // return early return ; } return ourObject; }
Clearly the code above has an issue, if the condition fails then we have a problem as to...
Started by Whyamistilltyping on
, 14 posts
by 14 people.
Answer Snippets (Read the full thread at stackoverflow):
If you didn't want to change the return type to a pointer, you could possibly use the null object pattern
What's the lifetime of 'ourObject' and where is it created?
If you need to return early function agreed to says that it will return....
|
|
Do you prefer to write methods/functions using a single return statement or do you prefer several return statements?
C# pseudo code example for one return:
public string Foo(string message) { string result = string.Empty; if (message.Equals("Ping?")) ...
Started by hangy on
, 10 posts
by 10 people.
Answer Snippets (Read the full thread at stackoverflow):
Duplicate....
I prefer multiple return statments because it means shorter code, which is a good thing.
It's all in the understanding, I think.
I have no problems with multiple return values, but I use whatever makes the code easiest to understand.
|
|
Ok, I'm unsure if my return line will end the for() loop or just the if() question?
Example:
for(;;) { wait(1); if(something) { tokens = strTok(something, " ") if(tokens.size < 2) return; } }
I'm guessing that it'll just return from the if(something...
Started by Dan2k3k4 on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
return in most languages will....
FOR() and IF() structures don't usually have return statements.
This may depend on the particular language but for all the languages I can think of return will return from the current function.
|
|
With regards this example from Code Complete:
Comparison Compare(int value1, int value2) { if ( value1 < value2 ) return Comparison_LessThan; else if ( value1 > value2 ) return Comparison_GreaterThan; else return Comparison_Equal; }
You could also...
Started by psquare on
, 10 posts
by 10 people.
Answer Snippets (Read the full thread at stackoverflow):
Edit: More generally, the else statement is just.
Using else fall through to that last return statement.
In case there is a return statement, there is no difference.
It is trivial.
Or not.
|
|
What are the exact circumstances for which a return statement in Javascript can return a value other than this when a constructor is invoked using the new keyword?
Example:
function Foo () { return something; } var foo = new Foo ();
If I'm not mistaken...
Answer Snippets (Read the full thread at stackoverflow):
As a matter of fact, it is a good way = 'Hello'; var privateVariable2 = 'World'; function privateMethod() { //do stuff } return { publicVariable1 : null, publicVariable....
You are correct in that you can return anything you want.
The function.
|
