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authorsanine <sanine.not@pm.me>2022-08-27 23:52:56 -0500
committersanine <sanine.not@pm.me>2022-08-27 23:52:56 -0500
commita4dd0ad63c00f4dee3b86dfd3075d1d61b2b3180 (patch)
tree13bd5bfa15e6fea2a12f176bae79adf9c6fd0933 /portaudio/src/common/pa_endianness.h
parentbde3e4f1bb7b8f8abca0884a7d994ee1c17a66b1 (diff)
add plibsys
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diff --git a/portaudio/src/common/pa_endianness.h b/portaudio/src/common/pa_endianness.h
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--- a/portaudio/src/common/pa_endianness.h
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-#ifndef PA_ENDIANNESS_H
-#define PA_ENDIANNESS_H
-/*
- * $Id$
- * Portable Audio I/O Library current platform endianness macros
- *
- * Based on the Open Source API proposed by Ross Bencina
- * Copyright (c) 1999-2002 Phil Burk, Ross Bencina
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files
- * (the "Software"), to deal in the Software without restriction,
- * including without limitation the rights to use, copy, modify, merge,
- * publish, distribute, sublicense, and/or sell copies of the Software,
- * and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
- * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * The text above constitutes the entire PortAudio license; however,
- * the PortAudio community also makes the following non-binding requests:
- *
- * Any person wishing to distribute modifications to the Software is
- * requested to send the modifications to the original developer so that
- * they can be incorporated into the canonical version. It is also
- * requested that these non-binding requests be included along with the
- * license above.
- */
-
-/** @file
- @ingroup common_src
-
- @brief Configure endianness symbols for the target processor.
-
- Arrange for either the PA_LITTLE_ENDIAN or PA_BIG_ENDIAN preprocessor symbols
- to be defined. The one that is defined reflects the endianness of the target
- platform and may be used to implement conditional compilation of byte-order
- dependent code.
-
- If either PA_LITTLE_ENDIAN or PA_BIG_ENDIAN is defined already, then no attempt
- is made to override that setting. This may be useful if you have a better way
- of determining the platform's endianness. The autoconf mechanism uses this for
- example.
-
- A PA_VALIDATE_ENDIANNESS macro is provided to compare the compile time
- and runtime endianness and raise an assertion if they don't match.
-*/
-
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif /* __cplusplus */
-
-/* If this is an apple, we need to do detect endianness this way */
-#if defined(__APPLE__)
- /* we need to do some endian detection that is sensitive to hardware arch */
- #if defined(__LITTLE_ENDIAN__)
- #if !defined( PA_LITTLE_ENDIAN )
- #define PA_LITTLE_ENDIAN
- #endif
- #if defined( PA_BIG_ENDIAN )
- #undef PA_BIG_ENDIAN
- #endif
- #else
- #if !defined( PA_BIG_ENDIAN )
- #define PA_BIG_ENDIAN
- #endif
- #if defined( PA_LITTLE_ENDIAN )
- #undef PA_LITTLE_ENDIAN
- #endif
- #endif
-#else
- /* this is not an apple, so first check the existing defines, and, failing that,
- detect well-known architectures. */
-
- #if defined(PA_LITTLE_ENDIAN) || defined(PA_BIG_ENDIAN)
- /* endianness define has been set externally, such as by autoconf */
-
- #if defined(PA_LITTLE_ENDIAN) && defined(PA_BIG_ENDIAN)
- #error both PA_LITTLE_ENDIAN and PA_BIG_ENDIAN have been defined externally to pa_endianness.h - only one endianness at a time please
- #endif
-
- #else
- /* endianness define has not been set externally */
-
- /* set PA_LITTLE_ENDIAN or PA_BIG_ENDIAN by testing well known platform specific defines */
-
- #if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__) || defined(LITTLE_ENDIAN) || defined(__i386) || defined(_M_IX86) || defined(__x86_64__)
- #define PA_LITTLE_ENDIAN /* win32, assume intel byte order */
- #else
- #define PA_BIG_ENDIAN
- #endif
- #endif
-
- #if !defined(PA_LITTLE_ENDIAN) && !defined(PA_BIG_ENDIAN)
- /*
- If the following error is raised, you either need to modify the code above
- to automatically determine the endianness from other symbols defined on your
- platform, or define either PA_LITTLE_ENDIAN or PA_BIG_ENDIAN externally.
- */
- #error pa_endianness.h was unable to automatically determine the endianness of the target platform
- #endif
-
-#endif
-
-
-/* PA_VALIDATE_ENDIANNESS compares the compile time and runtime endianness,
- and raises an assertion if they don't match. <assert.h> must be included in
- the context in which this macro is used.
-*/
-#if defined(NDEBUG)
- #define PA_VALIDATE_ENDIANNESS
-#else
- #if defined(PA_LITTLE_ENDIAN)
- #define PA_VALIDATE_ENDIANNESS \
- { \
- const long nativeOne = 1; \
- assert( "PortAudio: compile time and runtime endianness don't match" && (((char *)&nativeOne)[0]) == 1 ); \
- }
- #elif defined(PA_BIG_ENDIAN)
- #define PA_VALIDATE_ENDIANNESS \
- { \
- const long nativeOne = 1; \
- assert( "PortAudio: compile time and runtime endianness don't match" && (((char *)&nativeOne)[0]) == 0 ); \
- }
- #endif
-#endif
-
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-#endif /* PA_ENDIANNESS_H */