mirror of
https://github.com/tesseract-ocr/tesseract.git
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93 lines
2.4 KiB
C++
93 lines
2.4 KiB
C++
/******************************************************************************
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** Filename: host.h
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** Purpose: This is the system independent typedefs and defines
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** Author: MN, JG, MD
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**
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** (c) Copyright Hewlett-Packard Company, 1988-1996.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#ifndef TESSERACT_CCUTIL_HOST_H_
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#define TESSERACT_CCUTIL_HOST_H_
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#include <limits>
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#include "platform.h"
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/* _WIN32 */
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#ifdef _WIN32
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#include <windows.h>
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#undef min
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#undef max
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#endif
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#include <cinttypes> // PRId32, ...
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#include <cstdint> // int32_t, ...
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// definitions of portable data types (numbers and characters)
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typedef int8_t inT8;
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typedef uint8_t uinT8;
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typedef int16_t inT16;
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typedef uint16_t uinT16;
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typedef int32_t inT32;
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typedef uint32_t uinT32;
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typedef int64_t inT64;
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typedef uint64_t uinT64;
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typedef float FLOAT32;
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typedef double FLOAT64;
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typedef unsigned char BOOL8;
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#if defined(_WIN32)
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/* MinGW defines the standard PRI... macros, but MSVS doesn't. */
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#if !defined(PRId32)
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#define PRId32 "d"
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#endif
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#if !defined(PRId64)
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#define PRId64 "I64d"
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#endif
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#endif /* _WIN32 */
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#define MAX_INT8 0x7f
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#define MAX_INT16 0x7fff
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#define MAX_INT32 0x7fffffff
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#define MAX_UINT8 0xff
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#define MAX_UINT16 0xffff
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#define MAX_UINT32 0xffffffff
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#define MAX_FLOAT32 std::numeric_limits<float>::max()
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#define MIN_INT8 static_cast<inT8>(0x80)
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#define MIN_INT16 static_cast<inT16>(0x8000)
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#define MIN_INT32 static_cast<inT32>(0x80000000)
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#define MIN_UINT8 0x00
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#define MIN_UINT16 0x0000
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#define MIN_UINT32 0x00000000
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// Minimum positive value ie 1e-37ish.
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#define MIN_FLOAT32 std::numeric_limits<float>::min()
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// Defines
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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// Return true if x is within tolerance of y
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template<class T> bool NearlyEqual(T x, T y, T tolerance) {
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T diff = x - y;
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return diff <= tolerance && -diff <= tolerance;
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}
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#endif // TESSERACT_CCUTIL_HOST_H_
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