/usr/include/tesseract/host.h is in libtesseract-dev 4.00~git2288-10f4998a-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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** Filename: host.h
** Purpose: This is the system independent typedefs and defines
** Author: MN, JG, MD
**
** (c) Copyright Hewlett-Packard Company, 1988-1996.
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
** http://www.apache.org/licenses/LICENSE-2.0
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#ifndef TESSERACT_CCUTIL_HOST_H_
#define TESSERACT_CCUTIL_HOST_H_
#include <limits>
#include "platform.h"
/* _WIN32 */
#ifdef _WIN32
#include <windows.h>
#undef min
#undef max
#endif
#include <cinttypes> // PRId32, ...
#include <cstdint> // int32_t, ...
// definitions of portable data types (numbers and characters)
typedef float FLOAT32;
typedef double FLOAT64;
typedef unsigned char BOOL8;
#if defined(_WIN32)
/* MinGW defines the standard PRI... macros, but MSVS doesn't. */
#if !defined(PRId32)
#define PRId32 "d"
#endif
#if !defined(PRId64)
#define PRId64 "I64d"
#endif
#endif /* _WIN32 */
#define MAX_FLOAT32 std::numeric_limits<float>::max()
// Minimum positive value ie 1e-37ish.
#define MIN_FLOAT32 std::numeric_limits<float>::min()
// Defines
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
// Return true if x is within tolerance of y
template<class T> bool NearlyEqual(T x, T y, T tolerance) {
T diff = x - y;
return diff <= tolerance && -diff <= tolerance;
}
#endif // TESSERACT_CCUTIL_HOST_H_
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