Please - explain the purpose of highlighted code

[Anonymous_Banned275]

I am posting this to gain understanding of the purpose of highlighted code.
This is taken from QT doc on how to pass parameters to QtConncurrent :run function.

I do not need any more instruction - just answer to this question.

Reference to document would be nice - QT doc does not say why it is necessary.
I can "pass " int integer = xxx; however I do not know how to pass a pointer.
For example "struct ptr ??? " .

extern void aFunctionWithArguments(int arg1, double arg2, const QString &string);

**int integer = ...;
double floatingPoint = ...;
QString string = ...;**

QFuture<void> future = QtConcurrent::run(aFunctionWithArguments, integer, floatingPoint, string);

[JKSH]

@AnneRanch said in Please - explain the purpose of highlighted code:

I am posting this to gain understanding of the purpose of highlighted code.

When you say "highlighted code", do you mean the part that you wrapped in ** ... ** symbols?

Its purpose is to store values inside variables. That's all.

QT doc does not say why it is necessary.

It is not necessary, it is just very common.

This code:

int integer = 12;
double floatingPoint = 3.4;
QString string = "Fifty-six";
QFuture<void> future = QtConcurrent::run(aFunctionWithArguments, integer, floatingPoint, string);

...does exactly the same thing as this code:

QFuture<void> future = QtConcurrent::run(aFunctionWithArguments, 12, 3.4, "Fifty-six");

I can "pass " int integer = xxx; however I do not know how to pass a pointer.

You must first write a function that accepts a pointer as a parameter.

[Anonymous_Banned275]

@JKSH I was under wrong impression that the function parameters names ( TYPE) passed to " run" should have same names as used in the function declaration. SOLVED