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author | Zack Weinberg <zackw@panix.com> | 2019-02-18 21:00:34 -0500 |
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committer | Zack Weinberg <zackw@panix.com> | 2020-01-08 12:52:50 -0500 |
commit | 40782c2685760fc7fe9d82738e3091bfa5216c1c (patch) | |
tree | cae674713f38b587349fe832822076bda58afe71 /sysdeps/unix/sysv/linux/s390/bits/typesizes.h | |
parent | 9d8ecbbf117a1f3ddeb6b80a4e242d43a1f6d390 (diff) | |
download | glibc-40782c2685760fc7fe9d82738e3091bfa5216c1c.tar.gz glibc-40782c2685760fc7fe9d82738e3091bfa5216c1c.tar.xz glibc-40782c2685760fc7fe9d82738e3091bfa5216c1c.zip |
sys/types.h: Don’t define u_intN_t or register_t unless __USE_MISC.
sys/types.h unconditionally defines u_int8_t, u_int16_t, u_int32_t, u_int64_t, and register_t. These are not part of any standard. The u_intXX_t types are superseded by C99’s uintXX_t types (defined in stdint.h). I’m not aware of a standardized exact equivalent of register_t, but also I’ve never seen anyone use it for anything. I could be persuaded to leave that one alone. sys/types.h also unconditionally defines int8_t, int16_t, int32_t, and int64_t, which are the same as the C99 exact-width signed types in stdint.h. POSIX doesn’t require these to appear in sys/types.h, so in principle they ought to be brought under __USE_MISC also. But, when I tried that it broke about two dozen files just in our own source tree, and POSIX doesn’t *forbid* sys/types.h to define these types, so I think we should leave them alone. * posix/sys/types.h (u_int8_t, u_int16_t, u_int32_t, u_int64_t) (register_t): Move under #ifdef __USE_MISC. Consolidate adjacent #ifdef __USE_MISC blocks. * scripts/check_obsolete_constructs.py: Add register_t to the set of obsolete typedefs that our headers should not use (but sys/types.h may still define).
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/bits/typesizes.h')
0 files changed, 0 insertions, 0 deletions