new and memory management

[Carlos Martinez]

Hi all:

When in a class constructor an exception is thrown, the class must free
memory it has reserved during initialization.
But what about the memory reserved for a class itself.

Ex:

MyClass* myObject;

try {
myObject = new MyClass();
} catch(excepcion& e) {
...
}

If the constructor of MyClass throws an exception, does new return
memory that must be freed?

Thanks in advance

[Phlip]

Carlos Martinez wrote:

When in a class constructor an exception is thrown, the class must free
memory it has reserved during initialization.
But what about the memory reserved for a class itself.

http://www.parashift.com/c++-faq-lit...html#faq-16.10

"In p = new Fred(), does the Fred memory "leak" if the Fred constructor
throws an exception?"

Always Google for the FAQ and such before posting!

--
Phlip
http://www.greencheese.org/ZeekLand <-- NOT a blog!!!

[benben]

Carlos Martinez wrote:

Hi all:

When in a class constructor an exception is thrown, the class must free
memory it has reserved during initialization.
But what about the memory reserved for a class itself.

Ex:

MyClass* myObject;

try {
myObject = new MyClass();
} catch(excepcion& e) {
...
}

If the constructor of MyClass throws an exception, does new return
memory that must be freed?

Thanks in advance

The memory is freed so don't worry.

Regards,
Ben

[mlimber]

Carlos Martinez wrote:

Hi all:

When in a class constructor an exception is thrown, the class must free
memory it has reserved during initialization.
But what about the memory reserved for a class itself.

Ex:

MyClass* myObject;

try {
myObject = new MyClass();
} catch(excepcion& e) {
...
}

If the constructor of MyClass throws an exception, does new return
memory that must be freed?

Thanks in advance

See also this FAQ:

http://www.parashift.com/c++-faq-lit...html#faq-11.14

which describes in gory detail what happens implicitly when you use
new, including when an exception is thrown by your object's
constructor.

Cheers! --M