ff344562db
This change imports a few warnings and minor fixes from Charles branch here: https://bitbucket.org/plan9-from-bell-labs/plan9. The changes included here: changeset: 1374:9185dc017be0 summary: declare castucom; move a declaration into order; use cast instead of ULL suffix changeset: 1353:5fe8380b1818 summary: supporting functions: 1. castucom to match unlikely mask operation; 2. be sure to snap both sides of pointer subtraction completely; 3. add extra operators as side-effect free changeset: 1352:90058c092d66 summary: 1. correct result type for mixed-mode assignment operators 2. detect divide by zero (erik); 3. detect masks misformed by sign-extension; 4. diagnose mixed old/new prototypes |
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