[LLVMdev] ConstantPointerRef and void*'s to functions
jstanley at cs.uiuc.edu
Fri May 9 21:24:01 PDT 2003
I have a Function* to a function that has a signature like:
void foo(double*, double*);
I need to write the address of this function into a global variable initializer (really, into the initializer of a particular structure field). The structure field type is void*, and must be.
Because of type constraints, doing something like:
Function* foo = ...;
std::vector<const Type*> fields;
will yield a type error because the type of the function foo ("void (*) (double*, double*)") does not match the structure field type.
How might I go about making the necessary cast-like step at the GlobalValue/Function level? I want to do something like:
Function* quasiCastThinger = foo->getAsType(myDesiredFunctionType);
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