C++ style assignment not working

[jsg]

I read that C++ has a new type of assignment syntax that I can choose to utilize.
I.e.

int a(10); // C++ style
int a = 10; // C stlye

Sometimes this syntax fails, such as below:

class CDisplay {
public:
    CDisplay();
    virtual ~CDisplay();
;
    void TimeStamp(void);
    void Message(const std::string& Message);
    void Message(const std::string& Text, const std::string& Message);
    void SetLogLevel(bool value) {
		bLogLevel = value;
// If I change the above line to: bLogLevel(value); the compiler says:
// CDisplay.h|24|error: '((CDisplay*)this)->CDisplay::bLogLevel' cannot be used as a function
    }

    bool GetLogLevel(void) {
        return bLogLevel;
    }

protected:
private:
	bool bLogLevel;
};

Now it thinks the C++ style is a function..
How do I know when it's safe to use this C++ style of assignment? Should I just abandon it for C style assignment?

[ninja9578]

That's not assignment syntax, that's initialization syntax

[jsg]

That's not assignment syntax, that's initialization syntax

I apologize, I'm still trying to learn the correct terms for things. I still don't understand why it works in some places, but not others. My book doesn't seem to explain why, it just says it can be used in the places I would normally use C assignment.

It says that a=10 is the same as a(10)

It appears this isn't always the case.

[jsg]

I made a little program to try to understand

int main() {
    int a = 10;
    a(20); // produces same error
}

So I guess the big clue was the word initialization. Once a variable exists, it can't exactly be initialized again. Makes sense to me now.

[ninja9578]

Theoretically, they should degenerate into the same code, but no guarantees.

[Philip Nicoletti]

int a = 20;   // CREATES an integer named "a" , and initializes it to 20
int a(20);    // CREATES an integer named "a" , and initializes it to 20

a(20);  // calls a function named "a" which takes one parameter

[ninja9578]

I don't believe it is very common to see that syntax for primitives. I almost always see code like this:

int i = 0;

I usually see the other style of initialization only with objects, or initialization lists in ctors.

[Paul McKenzie]

I don't believe it is very common to see that syntax for primitives. I almost always see code like this:

int i = 0;

I usually see the other style of initialization only with objects, or initialization lists in ctors.

In templated code, where the template type can be anything (primitive, a class/struct, etc.), then you will see this syntax used.

Regards,

Paul McKenzie