Argument-passing may refer to two different things: (1) the process of providing a program being started with some initial pieces of information (the arguments) on its command line; (2) the process of providing the initial values (the arguments) for the parameters of a function when it is called.
Questions tagged [argument-passing]
777 questions
5
votes
3 answers
OOP: Passing an object vs. passing attributes into a method
In terms of a clean design, which is preferable?
1) Passing an object, say yourself, to another class method which will manipulate the attributes of the passed object directly.
Inside Class A...
B.doStuff(this);
2) Pass the object's attributes…
Aram Kocharyan
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votes
4 answers
How can I pass command-line arguments via file association in Vista 64?
How can one pass command line arguments via file association in Vista 64?
I recently built a PC running Vista Ultimate 64-bit. I noticed several of the Perl scripts I transferred failed due to command-line arguments not being passed. As a simple…
vlee
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User-Function, formals object defined but not found by code
The business I work for does ELISA analysis all the time (the immune assay), and so I am programming a function that takes a csv format version of the machine readout for the optical densities and runs a statistical regression called a 4PL analysis.…
Eich
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Best practices for number of arguments for subroutines in C
I've recently started working on developing APIs written in C. I see some subroutines which expect 8(Eight) parameters and to me it looks ugly and cumbersome passing 8 parameters while calling that particular subroutine. I was wondering if something…
Amit
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Keyword argument in unpacking argument list/dict cases in Python
For python, I could use unpacking arguments as follows.
def hello(x, *y, **z):
print 'x', x
print 'y', y
print 'z', z
hello(1, *[1,2,3], a=1,b=2,c=3)
hello(1, *(1,2,3), **{'a':1,'b':2,'c':3})
x = 1
y = (1, 2, 3)
z = {'a': 1, 'c':…
prosseek
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2 answers
splat over JavaScript object (with new)?
How do I splat across objects without using ECMA6 features?
Attempt
function can(arg0, arg1) {
return arg0 + arg1;
}
function foo(bar, haz) {
this.bar = bar;
this.haz = haz;
}
myArgs = [1,2];
With can I can just do:
can.apply(this,…
A T
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2 answers
Can this Ruby method call be made without **{} at the end?
I have a method defined like this:
def woot(a = nil, b: nil)
...
end
What is the least ugly way to pass a Hash instance to a when b is omitted?
I tried
woot(x: 1)
woot({x: 1})
h = {x: 1}
woot(h)
but they all raise
ArgumentError: unknown keyword:…
jedediah
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Passing increment/decrement operator to a function
I have the same function with the only difference that it will either increment or decrement. I would like to generalize from that.
template
void f(int& i, O op){
op(i);
}
int main() {
int i;
f(i,operator++);
f(i,operator--);
…
kirill_igum
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4 answers
Process.Start - Pass html code to exe as argument
I am using the code below to start a executable file from a windows service and I need to pass html code (stored in a variable) as an argument. I am escaping with double quotes but this is not working. What do I need to do in order to pass this…
user1017477
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5
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3 answers
Cost of using repeated parameters
I consider refactoring few method signatures that currently take parameter of type List or Set of concrete classes --List[Foo]-- to use repeated parameters instead: Foo*.
Update: Following reasoning is flawed, move along...
This would allow me…
Palimondo
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1 answer
Pointer argument to boost python
What's the best way to make a function that has pointer as argument work with boost python?
I see there are many possibilities for return values in the docs, but I don't know how to do it with arguments.
void Tesuto::testp(std::string* s)
{
if…
piotr
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Pass multiple files / folders from windows explorer to external application
Hi does anyone know how to get windows explorer to pass multiple files / folders through to an external app (c#) referenced in the registry?
I am current able to act upon a single file / folder using the %1 syntax but not sure how to get explorer to…
Grant
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Trying to pass CGrect to performSelector withObject
I'm trying to pass a CGRect:
SEL frameSel = NSSelectorFromString(@"setFrame:");
CGRect rect = CGRectMake(10, 10, 200, 100);
[object performSelector:frameSel withObject:rect ];
But this does not compile
I also tried:
SEL frameSel =…
Fabrizio Farinelli
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Different behaviour for generic method return value to method and to assignment
I faced with code, which compilation result was surprised for me.
public class Test3{
public static Map map(){return new HashMap();}
}
class A{
static void f(Map bcMap){}
public static void…
gstackoverflow
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2 answers
variadic template arguments: can I pick reference vs value depending on type?
edit This is not a duplicate of Undefined reference to static class member. That question explored the cause of the problem (which I explain below). Here, I'm looking for a different solution from those proposed in the answers to that questions…
Walter
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