develop/open_watcom: Post-SVN tidy

- Move source code from `trunk` into program root directory. - Update build files. - Note: Line endings standardised from `CRLF` > `LF`, so best to view diffs with whitespace changes hidden.
2025-05-24 13:38:52 +01:00
parent 515d1e92ad
commit c8cc441230
460 changed files with 7547 additions and 7547 deletions
--- a/watcom/clib/string/strncat.c
+++ b/watcom/clib/string/strncat.c
@@ -0,0 +1,116 @@
+/****************************************************************************
+*
+*                            Open Watcom Project
+*
+*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
+*
+*  ========================================================================
+*
+*    This file contains Original Code and/or Modifications of Original
+*    Code as defined in and that are subject to the Sybase Open Watcom
+*    Public License version 1.0 (the 'License'). You may not use this file
+*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
+*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
+*    provided with the Original Code and Modifications, and is also
+*    available at www.sybase.com/developer/opensource.
+*
+*    The Original Code and all software distributed under the License are
+*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
+*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
+*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
+*    NON-INFRINGEMENT. Please see the License for the specific language
+*    governing rights and limitations under the License.
+*
+*  ========================================================================
+*
+* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
+*               DESCRIBE IT HERE!
+*
+****************************************************************************/
+
+
+#include "variety.h"
+#include "widechar.h"
+#include <stdio.h>
+#include <string.h>
+
+#if defined(M_I86) && !defined(__WIDECHAR__)
+
+extern char *_fast_strncat( char _WCFAR *, const char *, size_t );
+
+#if defined(__SMALL_DATA__)
+
+#pragma aux _fast_strncat = \
+        0x57            /* push di */\
+        0xb9 0xff 0xff  /* mov cx,ffffh */\
+        0x31 0xc0       /* xor ax,ax */\
+        0xf2 0xae       /* repne scasb */\
+        0x4f            /* dec di */\
+        0x89 0xd1       /* mov cx,dx */\
+        0xac            /* L1: lodsb */\
+        0xaa            /* stosb */\
+        0x84 0xc0       /* test al,al */\
+        0xe0 0xfa       /* loopne L1 */\
+        0x74 0x03       /* je L2 */\
+        0x26 0x88 0x25  /* mov es:[di],ah */\
+        0x58            /* L2: pop ax */\
+        parm caller     [es di] [si] [dx]\
+        value           [ax] \
+        modify exact    [ax cx si di];
+
+#else
+
+#pragma aux _fast_strncat = \
+        0x1e            /* push ds */ \
+        0x8e 0xd9       /* mov ds,cx */ \
+        0x57            /* push di */\
+        0xb9 0xff 0xff  /* mov cx,ffffh */\
+        0x31 0xc0       /* xor ax,ax */\
+        0xf2 0xae       /* repne scasb */\
+        0x4f            /* dec di */\
+        0x89 0xd1       /* mov cx,dx */\
+        0xac            /* L1: lodsb */\
+        0xaa            /* stosb */\
+        0x84 0xc0       /* test al,al */\
+        0xe0 0xfa       /* loopne L1 */\
+        0x74 0x03       /* je L2 */\
+        0x26 0x88 0x25  /* mov es:[di],ah */\
+        0x58            /* L2: pop ax */\
+        0x1f            /* pop ds */ \
+        parm caller     [es di] [cx si] [dx]\
+        value           [es ax] \
+        modify exact    [ax cx si di];
+#endif
+
+#endif
+
+
+/* concatenate t to the end of dst */
+
+_WCRTLINK CHAR_TYPE *__F_NAME(strncat,wcsncat) ( CHAR_TYPE *dst, const CHAR_TYPE *t, size_t n )
+    {
+#if defined(M_I86) && !defined(__WIDECHAR__)
+        if( n ) {
+            return( _fast_strncat( dst, t, n ) );
+        }
+        return( dst );
+#else
+        CHAR_TYPE *s;
+
+        #ifdef __WIDECHAR__
+            s = dst + wcslen( dst );
+        #else
+            s = memchr( dst, NULLCHAR, ~0u );
+        #endif
+        while( n != 0 ) {
+            *s = *t;
+            if( *s == NULLCHAR ) break;
+            ++s;
+            ++t;
+            --n;
+        }
+        *s = NULLCHAR;
+        return( dst );
+#endif
+    }