resolution.
- In tcflush() a break signal can no longer cause the read flush loop
to be quit with two semaphores still locked.
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are detected.
- Modified function return values of 0 and -1 to use macros like OK,
ERROR/SEEK_ERROR instead, to better convey what the purpose of these
values is.
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the original file descriptors they are duplicates of. I modified the
function which maps file descriptor numbers to file descriptor
table entries to return the table entries of the original files.
- In the thread-safe library, duplicated stdin/stdout/stderr
descriptors now work like the "real" ones. This is true even if
the "real" ones were closed and only their former aliases remain.
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initialization code for the stdin/stdout/stderr streams and
out of the program parameter setup.
- The current program name is now set up in the stdlib
initialization function.
- Simplified the machine test code; moved the FPU check into
the math initialization code.
- Added more safety checks to verify that file descriptor
file handles are valid.
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the file descriptor hook and into the respective functions,
such as dup2(), fchmod(), fchown(), fcntl(), fdatasync(), fstatfs(),
fsync(), ftruncate() and lseek(). Code which is not strictly
required will no longer find its way into your programs if you
link with the updated library.
NOTE: these changes require that the entire library is rebuilt!
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code which initialized them.
- Reading/changing the errno variable is no longer done directly, but
involves accessor functions.
- References to the HUGE_VAL quantity now involve an accessor function, too.
- Changed the manner in which the __huge_val constant is initialized by
the __math_init() function.
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as isinf() and isnan().
- Updated code and header files to state exactly which ISO 'C' version
is meant by the "The following is not part of the ISO 'C' standard."
warning.
- Integrated rint() and rintf().
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