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ICU-597 Modified the calculation for U_MAX_PTR incorrectly.

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X-SVN-Rev: 3989
This commit is contained in:
George Rhoten 2001-03-09 01:29:44 +00:00
parent 3baefcb12a
commit 19b4867af3
1 changed files with 6 additions and 6 deletions
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icu4c/source/common/unicode/pos400.h
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@ -101,14 +101,14 @@ With the provided macro we should never be out of range of a given segment
and 3 bytes for the offset. The key is that the casting takes care of only
retrieving the offset portion minus x1000. Hence, the smallest offset seen in
a program is x001000 and when casted to an int would be 0. That's why we can
only add 0xffefff. Otherwise, we would exceed the segment. Yes, 16M is the
magic limitation we in AS/400-land have been previously limited to. But now
we have teraspace storage. Currently this will support up to 2G. I did not
take the time to provide this additional check (what kind of pointer and then
different calculation).
only add 0xffefff. Otherwise, we would exceed the segment.
Currently, 16MB is the current addressing limitation on as/400. This macro
may eventually be changed to use 2GB addressability for the newer version of
as/400 machines.
*/
#ifndef U_MAX_PTR
#define U_MAX_PTR(ptr) ((void*)(((void*)ptr)-((int32_t)(ptr))+((int32_t)0xffefff)))
#define U_MAX_PTR(ptr) ((void*)(((char*)ptr)-((int32_t)(ptr))+((int32_t)0xffefff)))
#endif
/*===========================================================================*/