src-test2/lib/libc/stdio/ungetc.c, branch release/5.2.0_cvs

This commit was manufactured by cvs2svn to create tag

2004-01-10T05:53:29Z

'RELENG_5_2_0_RELEASE'. This commit was manufactured to restore the state of the 5.2-RELEASE image. Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.

Basic support for wide character I/O: getwc(), fgetwc(), getwchar(),

2002-08-13T09:30:41Z

putwc(), fputwc(), putwchar(), ungetwc(), fwide().

Fix the style of the SCM ID's.

2002-03-22T21:53:29Z

I believe have made all of libc .c's as consistent as possible.

Remove __P() usage.

2002-03-21T22:49:10Z

Back out disabling ungetc() at 0, use different solution:

2001-09-01T01:56:54Z

keep negative offset internally, but return 0 externally in ftell*() I.e. use 0 now as 'unspecified value' per POSIX ungetc() description.

Disallow ungetc at offset 0 (to prevent negative offset happens), so simplify

2001-08-31T19:50:25Z

checks in ftell.

Fix the current libc breakage in current:

2001-02-16T06:11:22Z

o Back out the __std* stuff. Can't figure out how to do this right now, so we'll save it for late. o use _up as a pointer for extra fields that we need to access. o back out the libc major version bump. Submitted by: green reviewed by: peter, imp, green, obrien (to varying degrees). We'll fix the "how do we stop encoding sizeof(FILE) in binaries" part later.

Remove _THREAD_SAFE and make libc thread-safe by default by

2001-01-24T13:01:12Z

adding (weak definitions to) stubs for some of the pthread functions. If the threads library is linked in, the real pthread functions will pulled in. Use the following convention for system calls wrapped by the threads library: __sys_foo - actual system call _foo - weak definition to __sys_foo foo - weak definition to __sys_foo Change all libc uses of system calls wrapped by the threads library from foo to _foo. In order to define the prototypes for _foo(), we introduce namespace.h and un-namespace.h (suggested by bde). All files that need to reference these system calls, should include namespace.h before any standard includes, then include un-namespace.h after the standard includes and before any local includes. is an exception and shouldn't be included in between namespace.h and un-namespace.h namespace.h will define foo to _foo, and un-namespace.h will undefine foo. Try to eliminate some of the recursive calls to MT-safe functions in libc/stdio in preparation for adding a mutex to FILE. We have recursive mutexes, but would like to avoid using them if possible. Remove uneeded includes of from a few files. Add $FreeBSD$ to a few files in order to pass commitprep. Approved by: -arch

$Id$ -> $FreeBSD$

1999-08-28T00:22:10Z

Add FILE locking stubs for libc.

1998-04-11T07:40:47Z

Change the FILE locking to support kernel threads when linked with libpthread (which you haven't see yet). This requires that libc become thread-safe and thread-aware, testing __isthreaded before attempting to do lock/unlock calls. The impact on non-threaded programs is minor. This change works with libc_r, so it's the best compromise.