X-Git-Url: https://pd.if.org/git/?p=pdclib;a=blobdiff_plain;f=functions%2Fstdio%2F_PDCLIB_ftell64.c;h=ea93fc69f467a481304181e65f73fb84e430fd9f;hp=77ab8723921e6f9513e7b3bba03bd4f36adb7163;hb=abc15df6b9fae3374d24c7cf5c3ab94c605b2a6d;hpb=8894c921674bb116d0a7b8f23a55311e7a768019

diff --git a/functions/stdio/_PDCLIB_ftell64.c b/functions/stdio/_PDCLIB_ftell64.c
index 77ab872..ea93fc6 100644
--- a/functions/stdio/_PDCLIB_ftell64.c
+++ b/functions/stdio/_PDCLIB_ftell64.c
@@ -1,62 +1,62 @@
-/* _PDCLIB_ftell64( FILE * )
-
-   This file is part of the Public Domain C Library (PDCLib).
-   Permission is granted to use, modify, and / or redistribute at will.
-*/
-
-#include <stdio.h>
-#include <stdint.h>
-#include <limits.h>
-
-#ifndef REGTEST
-#include "_PDCLIB_io.h"
-
-uint_fast64_t _PDCLIB_ftell64_unlocked( FILE * stream )
-{
-    /* ftell() must take into account:
-       - the actual *physical* offset of the file, i.e. the offset as recognized
-         by the operating system (and stored in stream->pos.offset); and
-       - any buffers held by PDCLib, which
-         - in case of unwritten buffers, count in *addition* to the offset; or
-         - in case of unprocessed pre-read buffers, count in *substraction* to
-           the offset. (Remember to count ungetidx into this number.)
-       Conveniently, the calculation ( ( bufend - bufidx ) + ungetidx ) results
-       in just the right number in both cases:
-         - in case of unwritten buffers, ( ( 0 - unwritten ) + 0 )
-           i.e. unwritten bytes as negative number
-         - in case of unprocessed pre-read, ( ( preread - processed ) + unget )
-           i.e. unprocessed bytes as positive number.
-       That is how the somewhat obscure return-value calculation works.
-    */
-
-    /* ungetc on a stream at offset==0 will cause an overflow to UINT64_MAX.
-     * C99/C11 says that the return value of ftell in this case is 
-     * "indeterminate"
-     */
-
-    return ( stream->pos.offset - ( ( (int)stream->bufend - (int)stream->bufidx ) + (int)stream->ungetidx ) );
-}
-
-uint_fast64_t _PDCLIB_ftell64( FILE * stream )
-{
-  _PDCLIB_flockfile( stream );
-  uint_fast64_t pos = _PDCLIB_ftell64_unlocked( stream );
-  _PDCLIB_funlockfile( stream );
-  return pos;
-}
-
-#endif
-
-#ifdef TEST
-#include "_PDCLIB_test.h"
-
-#include <stdlib.h>
-
-int main( void )
-{
-    /* Tested by ftell */
-    return TEST_RESULTS;
-}
-
-#endif
-
+/* _PDCLIB_ftell64( FILE * )
+
+   This file is part of the Public Domain C Library (PDCLib).
+   Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <stdio.h>
+#include <stdint.h>
+#include <limits.h>
+
+#ifndef REGTEST
+#include "_PDCLIB_io.h"
+
+uint_fast64_t _PDCLIB_ftell64_unlocked( FILE * stream )
+{
+    /* ftell() must take into account:
+       - the actual *physical* offset of the file, i.e. the offset as recognized
+         by the operating system (and stored in stream->pos.offset); and
+       - any buffers held by PDCLib, which
+         - in case of unwritten buffers, count in *addition* to the offset; or
+         - in case of unprocessed pre-read buffers, count in *substraction* to
+           the offset. (Remember to count ungetidx into this number.)
+       Conveniently, the calculation ( ( bufend - bufidx ) + ungetidx ) results
+       in just the right number in both cases:
+         - in case of unwritten buffers, ( ( 0 - unwritten ) + 0 )
+           i.e. unwritten bytes as negative number
+         - in case of unprocessed pre-read, ( ( preread - processed ) + unget )
+           i.e. unprocessed bytes as positive number.
+       That is how the somewhat obscure return-value calculation works.
+    */
+
+    /* ungetc on a stream at offset==0 will cause an overflow to UINT64_MAX.
+     * C99/C11 says that the return value of ftell in this case is 
+     * "indeterminate"
+     */
+
+    return ( stream->pos.offset - ( ( (int)stream->bufend - (int)stream->bufidx ) + (int)stream->ungetidx ) );
+}
+
+uint_fast64_t _PDCLIB_ftell64( FILE * stream )
+{
+  _PDCLIB_flockfile( stream );
+  uint_fast64_t pos = _PDCLIB_ftell64_unlocked( stream );
+  _PDCLIB_funlockfile( stream );
+  return pos;
+}
+
+#endif
+
+#ifdef TEST
+#include "_PDCLIB_test.h"
+
+#include <stdlib.h>
+
+int main( void )
+{
+    /* Tested by ftell */
+    return TEST_RESULTS;
+}
+
+#endif
+