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Questions tagged [argument-passing]

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.

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pass multiple arguments from makefile

My task is to pass multiple arguments to one of my executable binary files. For example, I have a binary which takes 6 arguments, so it works fine when I type: ./a.out 1 2 3 4 5 6 I want to do the same using a makefile so that when I type make…
Abhishek Gangwar
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How to P/Invoke "__arglist" function?

Background: I have written the following function in C++: extern "C" __declspec(dllexport) int test(const char*, ...); And I am using P/Invoke to call it from C#: [DllImport("foo/bar.dll", EntryPoint = "test")] public static unsafe extern int…
unknown6656
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How to pass an argument with space from bash script to bash script?

I have a script the manipulates data, creates arguments and sends them to a second script. One of the arguments contains a space. script1.sh: args=() args+=("A") args+=("1 2") args+=("B") . script2.sh ${args[@]} script2.sh: for f in "$@" do echo…
AlikElzin-kilaka
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Passing variadic template argument pack to next function

I have done my own reimplementation of printf() (classic) in my debugging code. template void Printf(wchar_t const * message, T value, Args ...args); void Printf(wchar_t const * message); void…
Antiusninja
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Arguments keep Returning Empty

Hello I've been having this problem for months , so please somebody help, I am a beginner in developing apps for android , that's why i wasn't able to fix this. The Problem: Developing A Music Player, my problem is with the playlists and its…
most unique
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How to put arguments in a function at run time?

So I am using execlp in my c++ program. execlp is of the form " int execlp(const char *file, const char *arg0,...,const char *argn)" meaning that it can take arbitrary amount of arguments. I just want to know that is there a way I can put arguments…
Fahad Ur Rehman
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R: find the original name of a function passed as argument

I have functions f1 and f2 that are taking a function as argument, eg: f1 <- function(FUN) { ... } f2 <- function(FUN) { f1(FUN=FUN) } From inside function f1, I need to find back the original name of the function passed to f2, eg…
RockScience
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Xpages Combobox setting values in managed bean

I am trying to pass arguments to a managed bean. The bean is configured and works, has two methods "getResponsible" and "setResponsible". Calling "myLookup.responsible" works. I cannot pass arguments to my bean, and can't figure out why. The…
Kermit
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How to parse same argument twice or more than once to python script?

I have written a python script which uses argeparse module for handling arguments. e.g. Test_Dual.py -g Linux Now, I want to give it two options for same argument, like Test_Dual.py -g Linux -g ESX -g Windows How can I do that?
akkidukes
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Passing convention for callable parameters

A lot of places in the STL and elsewhere you see code like this: template void foo(Func f) { // ... f(); } i.e. the callable parameter f is passed by (copy of) value. Why is this seemingly preferred over typing the…
sdzivanovich
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how to create a string literal as a function argument via string concatenation in c

I need to pass a string literal to a function myfunction("arg1" DEF_CHAR "arg1"); now part of that constructed string literal needs to be a function return stmp = createString(); myfunction("arg1" stmp "arg2"); //oh that doesn't work either is…
Reed Debaets
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Passing unique_ptr to library functions (FORTRAN function)

I am using LAPACK library to create a R-package using C++. I am using unique_ptr for defining the arrays as unique_ptr my_arr(new double[arr_length]); I then pass this unique_ptr to library function (FORTRAN function) which accepts…
user4043293
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Why do disjunction and conjunction in words need parenthesis?

Disjunction and conjunction in words (or, and) in argument position require additional parentheses, as opposed to ||, &&. def foo _; end foo(1 || 2) # => Good foo(1 or 2) # => Syntax error foo((1 or 2)) # => Good foo(1 && 2) # => Good foo(1 and 2)…
sawa
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PHP : passing empty arguments with Error / Exception handling

I'm trying to figure out what's better approach for argument passing to the class methods / standard functions. Basically - if we use default null for each argument then we can validate them from within the method and throw an exception, but if we…
Spencer Mark
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Using functors without default constructors for stl containers

I would like to use my own comparator for std::set, which needs a parameter to be passed to its constructor: template class EpsCompare { public: EpsCompare(T input_eps) : _eps(input_eps) {}; bool operator() (const T &…
urps
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