Function LLVMConstIntOfStringAndSize 

pub unsafe extern "C" fn LLVMConstIntOfStringAndSize(
    IntTy: LLVMTypeRef,
    Text: *const c_char,
    SLen: c_uint,
    Radix: u8,
) -> LLVMValueRef

Obtain a constant value for an integer parsed from a string with specified length.

@see llvm::ConstantInt::get()