test-20.c:15: warning: expression has null effect
test-20.c:15: warning: expression has null effect
test-20.c:21: warning: expression has null effect
test-20.c:23: warning: expression has null effect
test-20.c:25: warning: expression has null effect
test-20.c:27: warning: expression has null effect
test-20.c:31: warning: expression has null effect
test-20.c:33: warning: expression has null effect
test-20.c:33: warning: expression has null effect
test-20.c:33: warning: expression has null effect
test-20.c:33: warning: expression has null effect
test-20.c:35: warning: expression has null effect
test-20.c:37: warning: expression has null effect
test-20.c:42: warning: expression has null effect
test-20.c:44: warning: expression has null effect
test-20.c:44: warning: expression has null effect
test-20.c:44: warning: expression has null effect
test-20.c:48: warning: expression has null effect
test-20.c:54: warning: expression has null effect
test-20.c:60: warning: expression has null effect
Lint pass2: