#function pointer

LLVM IR Null pointer constants and function pointers. A wild goose chase after a bad assumption.

With ELLCC, you can easily check out the LLVM IR for code like:

typedef void ( *f )( void ); void foo( void ); f bar() { return (f)foo; }

is

[1]: http://ellcc.org/demo/index.cgi

define nonnull void ()* @bar() local_unnamed_addr { ret void ()* @foo } declare void @foo()

I was trying to use @foo in a “struct” object, and was getting an error attempting this:

llvm/lib/IR/Con…

What is the difference between delegate in c# and function pointer in c++? [duplicate]

Possible Duplicate: are there function pointers in c#?

I’m interested in finding the difference between delegate in C# and function pointer in C++.

Best Answer

Basically a delegate in C# is a type-safe function pointer with a built in iterator.

In other words, it’s guaranteed to point to a valid function with the specified signature (unlike C where pointers can be cast to point to who…

////////////////////////////////////////////////////////////////////////////

on class manageFunctionPointer.cpp

////////////////////////////////////////////////////////////////////////////

//declare a function pointer

void (*pfLoad) (void) = 0;

//assign function pointer

pfLoad = loadLevel;

////////////////////////////////////////////////////////////////////////////

on class main.cpp

////////////////////////////////////////////////////////////////////////////

//call from manageFunctionPointer.cpp

extern void (*pfLoad) (void) ;

//call function pointer