fig6.cs

// call our first method, leaving the argument result on the stack top
IL_0001:  call        UserQuery.SideEffectOne
// jump to IL_000F if the first method returned false, pop from the stack
IL_0006:  brfalse.s   IL_000F
// call our second method, leaving the argument result on the stack top
IL_0008:  call        UserQuery.SideEffectTwo
// always jump to IL_0010, (no value popped!)
IL_000D:  br.s        IL_0010
// load integer value of 0 on to the stack top
IL_000F:  ldc.i4.0
// store the value at the top of the stack into the memory chosen for p
IL_0010:  stloc.0     // p