X-Git-Url: http://git.subgeniuskitty.com/pforth/.git/blobdiff_plain/4d9c915d183f67c0c066996816524e863343c1d6..1f99f95d6a7eecc05cae8fb357f9b7bf564c2725:/csrc/pf_io.h

diff --git a/csrc/pf_io.h b/csrc/pf_io.h
index 5217390..56cc905 100644
--- a/csrc/pf_io.h
+++ b/csrc/pf_io.h
@@ -8,14 +8,17 @@
 ** Author: Phil Burk
 ** Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom
 **
-** The pForth software code is dedicated to the public domain,
-** and any third party may reproduce, distribute and modify
-** the pForth software code or any derivative works thereof
-** without any compensation or license.  The pForth software
-** code is provided on an "as is" basis without any warranty
-** of any kind, including, without limitation, the implied
-** warranties of merchantability and fitness for a particular
-** purpose and their equivalents under the laws of any jurisdiction.
+** Permission to use, copy, modify, and/or distribute this
+** software for any purpose with or without fee is hereby granted.
+**
+** THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+** WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+** WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+** THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+** CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+** FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+** CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+** OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 **
 ***************************************************************/
 
@@ -24,6 +27,9 @@
 #define PF_CHAR_XON    (0x11)
 #define PF_CHAR_XOFF   (0x13)
 
+#ifdef __cplusplus
+extern "C" {
+#endif
 int  sdTerminalOut( char c );
 int  sdTerminalEcho( char c );
 int  sdTerminalFlush( void );
@@ -31,6 +37,9 @@ int  sdTerminalIn( void );
 int  sdQueryTerminal( void );
 void sdTerminalInit( void );
 void sdTerminalTerm( void );
+#ifdef __cplusplus
+}
+#endif
 
 void ioInit( void );
 void ioTerm( void );
@@ -122,14 +131,18 @@ void ioTerm( void );
         #define sdFlushFile     fflush
         #define sdReadFile      fread
         #define sdWriteFile     fwrite
-        #if defined(WIN32) || defined(__NT__) || defined(AMIGA)
-            /* TODO To support 64-bit file offset we probably need fseeki64(). */
-            #define sdSeekFile      fseek
-            #define sdTellFile      ftell
-        #else
-            #define sdSeekFile      fseeko
-            #define sdTellFile      ftello
-        #endif
+
+        /*
+         * Note that fseek() and ftell() only support a long file offset.
+         * So 64-bit offsets may not be supported on some platforms.
+         * At one point we supported fseeko() and ftello() but they require
+         * the off_t data type, which is not very portable.
+         * So we decided to sacrifice vary large file support in
+         * favor of portability.
+         */
+        #define sdSeekFile      fseek
+        #define sdTellFile      ftell
+
         #define sdCloseFile     fclose
         #define sdRenameFile    rename
         #define sdInputChar     fgetc
@@ -141,6 +154,7 @@ void ioTerm( void );
         #define  PF_SEEK_CUR   (SEEK_CUR)
         #define  PF_SEEK_END   (SEEK_END)
 
+        /* TODO review the Size data type. */
         ThrowCode sdResizeFile( FileStream *, uint64_t Size);
 
         /*