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authorRich Felker <dalias@aerifal.cx>2011-09-19 17:39:51 -0400
committerRich Felker <dalias@aerifal.cx>2011-09-19 17:39:51 -0400
commit224c7a376acbc2feda12169b806e9845c828595e (patch)
tree69a72217cdf67552ffd69f5fbbfb4a5cf4db91c8 /crt
parent089aeb08a083d798b59fc84cbff9383f304b1b8f (diff)
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fix the type of wchar_t on arm; support wchar_t varying with arch
really wchar_t should never vary, but the ARM EABI defines it as an
unsigned 32-bit int instead of a signed one, and gcc follows this
nonsense. thus, to give a conformant environment, we have to follow
(otherwise L""[0] and L'\0' would be 0U rather than 0, but the
application would be unaware due to a mismatched definition for
WCHAR_MIN and WCHAR_MAX, and Bad Things could happen with respect to
signed/unsigned comparisons, promotions, etc.).

fortunately no rules are imposed by the C standard on the relationship
between wchar_t and wint_t, and WEOF has type wint_t, so we can still
make wint_t always-signed and use -1 for WEOF.
Diffstat (limited to 'crt')
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