Menu
The following code defines the entire program. Is this program standard conformant (with the latest version)?
void foo();
int main()
{
auto x = &foo;
return 0;
}
Here is a convenience shortcut.
This code has no practical use, I'm just curious.
342
There are 3 main reasons the "Cannot read property of undefined" error occurs: Accessing a property on a variable storing an undefined value. Accessing a property on DOM element that doesn't exist. Inserting the JS script tag above the HTML, where the DOM elements are declared.
We can get the address of a function by just writing the function’s name without parentheses. Please refer function pointer in C for details. In C/C++, name of a function can be used to find address of function. Writing code in comment? Please use ide.geeksforgeeks.org , generate link and share the link here.
Conclusion:- so the conclusion is that due to exclusion of return type it will not get the address in memory. C++ constructor and destructor are not functions at all: they are macros. They get inlined into the scope where the object is created, and the scope where the object is destroyed.
An addressof_expression consists of an ampersand ( &) followed by a unary_expression. Given an expression E which is of a type T and is classified as a fixed variable ( Fixed and moveable variables ), the construct &E computes the address of the variable given by E. The type of the result is T* and is classified as a value.
Every function that is odr-used requires a definition (no diagnostic required). Taking the address of a function is an odr-use, so this program exhibits undefined behaviour. With optimisations, the address-of is optimised out so it doesn't have a linker error, but it's not required to work.
82
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
