llvm_lib::core::values::constants::expressions

Function const_pointer_cast

Source 
pub fn const_pointer_cast(val: &ValueRef, to_type: &TypeRef) -> ValueRef
Expand description

Perform a pointer cast operation on a constant value to the specified type.

§Details

Casts a constant pointer value to a different pointer type without changing the address or bit representation.

This function wraps the LLVMConstPointerCast function from the LLVM core library. It generates a constant pointer cast, which reinterprets the pointer value represented by ValueRef as a different pointer type specified by to_type. The cast does not alter the underlying address or bit representation of the pointer; it simply changes the type of the pointer. This is typically used when you need to change the type of a pointer while preserving its address in memory.

§Parameters

  • to_type: A reference to the target pointer type (TypeRef) to which the pointer value should be cast. The target type must be a pointer type, but it may point to a different type than the original pointer.

§Returns

Returns an instance of ValueRef, which encapsulates the result of the pointer cast. The result is a constant value determined at compile time, representing the pointer value reinterpreted as the new type.