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read/write return type
- To: newlib at sources dot redhat dot com
- Subject: read/write return type
- From: "J. Johnston" <jjohnstn at cygnus dot com>
- Date: Mon, 05 Mar 2001 20:09:27 -0500
- Organization: Red Hat Inc.
A patch has been checked into newlib whereby the return type for read() and write() is set in
libc/include/sys/config.h. By default, this will be int to protect the legacy code out there. For
platforms that want to use the POSIX definition (currently just RTEMS), the value can be set to
ssize_t.
The following is the ChangeLog entry:
Mon Mar 5 21:48:54 2001 J"orn Rennecke <amylaar@redhat.com>
* libc/include/sys/config.h (_READ_WRITE_RETURN_TYPE): Define.
For RTEMS, define to be ssize_t. Default to int if not defined.
* libc/stdio/sscanf.c (eofread): Return _READ_WRITE_RETURN_TYPE.
* libc/stdio/stdio.c (__sread, __swrite): Likewise.
* libc/stdio/local.h (__sread, __swrite): Likewise.
* libc/include/sys/reent.h (_read, _write): Likewise.
* libc/include/sys/unistd.h (read, write, _read, _write): Likewise.
* libc/syscalls/sysread.c (read): Likewise.
* libc/syscalls/syswrite.c (write): Likewise.
-- Jeff J.