---
- branch: MAIN
  date: Tue Apr  6 21:59:58 UTC 2021
  files:
  - new: '1.4'
    old: '1.3'
    path: src/tests/usr.bin/xlint/lint1/msg_118.c
    pathrev: src/tests/usr.bin/xlint/lint1/msg_118.c@1.4
    type: modified
  - new: '1.271'
    old: '1.270'
    path: src/usr.bin/xlint/lint1/tree.c
    pathrev: src/usr.bin/xlint/lint1/tree.c@1.271
    type: modified
  id: 20210406T215958Z.60965b2c90dfb51bf37221f7e8f822d836c1738d
  log: |
    lint: for shift in C99 mode, do not warn about difference to pre-C90

    C99 is too far away from traditional C to make this warning useful.
    There are 3 different situations in which this warning is generated:

    For '1 << (unsigned char)1', the result type is 'unsigned int' in
    traditional C.  The result type is unsigned because at least 1 of the
    operators is unsigned, and it is 'unsigned int' because the usual
    arithmetic promotions are applied.

    For '1 >> (long)1', as well as for '1 << (long)1', the result type is
    'long' in traditional C since the usual arithmetic promotions are
    applied.

    Omitting this warning in C99 mode reduces the amount of lint warnings in
    a typical NetBSD release build by approximately 6800 of 107000 total.
  module: src
  subject: 'CVS commit: src'
  unixtime: '1617746398'
  user: rillig