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diff --git a/support/dktools/dk4rec26.ctr b/support/dktools/dk4rec26.ctr
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@@ -1,184 +0,0 @@
-%% options
-copyright owner = Dirk Krause
-copyright year = 2017-xxxx
-SPDX-License-Identifier: BSD-3-Clause
-
-
-%% header
-
-/** @file dk4rec26.h Recode characters to unsigned long.
- We can not simply convert unsing the (unsigned long) cast
- as on some systems wchar_t may be a signed integer type
- and unsigned long may be larger than 32 bits.
-
- Promoting negative wchar_t or wxChar values to 64 bit
- unsigned long will result in conversions for instance from
- wchar_t=0xFFFE0000 to ul=0xFFFFFFFFFFFE0000.
-
- So after an (unsigned long) cast we have to apply a mask,
- i.e. 0xFFFFFFFFUL when wchar_t is 4 bytes long or
- 0xFFFFU when wchar_t is 2 bytes long.
-*/
-
-#ifndef DK4CONF_H_INCLUDED
-#if DK4_BUILDING_DKTOOLS4
-#include "dk4conf.h"
-#else
-#include <dktools-4/dk4conf.h>
-#endif
-#endif
-
-#ifndef DK4TYPES_H_INCLUDED
-#if DK4_BUILDING_DKTOOLS4
-#include "dk4types.h"
-#else
-#include <dktools-4/dk4types.h>
-#endif
-#endif
-
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** Convert char to unsigned long.
- @param back Character to convert.
- @return Conversion result.
-*/
-unsigned long
-dk4recode_char_to_ul(unsigned long back);
-
-/** Convert 16 bit character to unsigned long.
- @param back Character to convert.
- @return Conversion result.
-*/
-unsigned long
-dk4recode_c16_to_ul(unsigned long back);
-
-/** Convert 32 bit character to unsigned long.
- @param back Character to convert.
- @return Conversion result.
-*/
-unsigned long
-dk4recode_c32_to_ul(unsigned long back);
-
-/** Convert dkChar to unsigned long.
- @param back Character to convert.
- @return Conversion result.
-*/
-unsigned long
-dk4recode_dk_to_ul(unsigned long back);
-
-/** Convert wchar_t to unsigned long.
- @param back Character to convert.
- @return Conversion result.
-*/
-unsigned long
-dk4recode_wc_to_ul(unsigned long back);
-
-#if 0
-
-/** Convert wxChar to unsigned long.
- @param back Character to convert.
- @return Conversion result.
-*/
-unsigned long
-dk4recode_wx_to_ul(unsigned long back);
-
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-%% module
-
-#include "dk4conf.h"
-
-
-#include "dk4rec26.h"
-
-
-
-unsigned long
-dk4recode_char_to_ul(unsigned long back)
-{
- back &= 0x000000FFUL;
- return back;
-}
-
-
-
-unsigned long
-dk4recode_c16_to_ul(unsigned long back)
-{
- back &= 0x0000FFFFUL;
- return back;
-}
-
-
-
-unsigned long
-dk4recode_c32_to_ul(unsigned long back)
-{
- back &= 0xFFFFFFFFUL;
- return back;
-}
-
-
-
-unsigned long
-dk4recode_dk_to_ul(unsigned long back)
-{
-#if DK4_CHAR_SIZE > 1
-#if DK4_CHAR_SIZE > 2
- back &= 0xFFFFFFFFUL;
-#else
- back &= 0x0000FFFFUL;
-#endif
-#else
- back &= 0x000000FFUL;
-#endif
- return back;
-}
-
-
-
-unsigned long
-dk4recode_wc_to_ul(unsigned long back)
-{
-#if DK4_SIZEOF_WCHAR_T > 1
-#if DK4_SIZEOF_WCHAR_T > 2
- back &= 0xFFFFFFFFUL;
-#else
- back &= 0x0000FFFFUL;
-#endif
-#else
- back &= 0x000000FFUL;
-#endif
- return back;
-}
-
-
-
-#if 0
-
-unsigned long
-dk4recode_wx_to_ul(unsigned long back)
-{
-#if DK4_SIZEOF_WXCHAR > 1
-#if DK4_SIZEOF_WXCHAR > 2
- back &= 0xFFFFFFFFUL;
-#else
- back &= 0x0000FFFFUL;
-#endif
-#else
- back &= 0x000000FFUL;
-#endif
- return back;
-}
-
-#endif
-
-