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Diffstat (limited to 'main/src/main/cpp/lzo/src/lzo_ptr.h')
| -rw-r--r-- | main/src/main/cpp/lzo/src/lzo_ptr.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/main/src/main/cpp/lzo/src/lzo_ptr.h b/main/src/main/cpp/lzo/src/lzo_ptr.h new file mode 100644 index 00000000..8d7ee448 --- /dev/null +++ b/main/src/main/cpp/lzo/src/lzo_ptr.h @@ -0,0 +1,123 @@ +/* lzo_ptr.h -- low-level pointer constructs + + This file is part of the LZO real-time data compression library. + + Copyright (C) 1996-2017 Markus Franz Xaver Johannes Oberhumer + All Rights Reserved. + + The LZO library is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2 of + the License, or (at your option) any later version. + + The LZO library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with the LZO library; see the file COPYING. + If not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + + Markus F.X.J. Oberhumer + <markus@oberhumer.com> + http://www.oberhumer.com/opensource/lzo/ + */ + + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the library and is subject + to change. + */ + + +#ifndef __LZO_PTR_H +#define __LZO_PTR_H 1 + +#ifdef __cplusplus +extern "C" { +#endif + + +/*********************************************************************** +// +************************************************************************/ + +/* Always use the safe (=integral) version for pointer-comparisons. + * The compiler should optimize away the additional casts anyway. + * + * Note that this only works if the representation and ordering + * of the pointer and the integral is the same (at bit level). + */ + +#if (LZO_ARCH_I086) +#error "LZO_ARCH_I086 is unsupported" +#elif (LZO_MM_PVP) +#error "LZO_MM_PVP is unsupported" +#else +#define PTR(a) ((lzo_uintptr_t) (a)) +#define PTR_LINEAR(a) PTR(a) +#define PTR_ALIGNED_4(a) ((PTR_LINEAR(a) & 3) == 0) +#define PTR_ALIGNED_8(a) ((PTR_LINEAR(a) & 7) == 0) +#define PTR_ALIGNED2_4(a,b) (((PTR_LINEAR(a) | PTR_LINEAR(b)) & 3) == 0) +#define PTR_ALIGNED2_8(a,b) (((PTR_LINEAR(a) | PTR_LINEAR(b)) & 7) == 0) +#endif + +#define PTR_LT(a,b) (PTR(a) < PTR(b)) +#define PTR_GE(a,b) (PTR(a) >= PTR(b)) +#define PTR_DIFF(a,b) (PTR(a) - PTR(b)) +#define pd(a,b) ((lzo_uint) ((a)-(b))) + + +LZO_EXTERN(lzo_uintptr_t) +__lzo_ptr_linear(const lzo_voidp ptr); + + +typedef union +{ + char a_char; + unsigned char a_uchar; + short a_short; + unsigned short a_ushort; + int a_int; + unsigned int a_uint; + long a_long; + unsigned long a_ulong; + lzo_int a_lzo_int; + lzo_uint a_lzo_uint; + lzo_xint a_lzo_xint; + lzo_int16_t a_lzo_int16_t; + lzo_uint16_t a_lzo_uint16_t; + lzo_int32_t a_lzo_int32_t; + lzo_uint32_t a_lzo_uint32_t; +#if defined(lzo_uint64_t) + lzo_int64_t a_lzo_int64_t; + lzo_uint64_t a_lzo_uint64_t; +#endif + size_t a_size_t; + ptrdiff_t a_ptrdiff_t; + lzo_uintptr_t a_lzo_uintptr_t; + void * a_void_p; + char * a_char_p; + unsigned char * a_uchar_p; + const void * a_c_void_p; + const char * a_c_char_p; + const unsigned char * a_c_uchar_p; + lzo_voidp a_lzo_voidp; + lzo_bytep a_lzo_bytep; + const lzo_voidp a_c_lzo_voidp; + const lzo_bytep a_c_lzo_bytep; +} +lzo_full_align_t; + + + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* already included */ + + +/* vim:set ts=4 sw=4 et: */ |