Hi; How do you get no-ops to trigger a warning? Eg this: void noop() { int i = 6; i |= 0; int j = 5; j += 0; int k = 3; k = k; } > g++ -pedantic -Wall -Wextra -O3 -c noops.cpp > compiles without complaint. Am I just missing a flag? (4.1.x, 4.4.x, 4.6) Thanks.