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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2018, Google Inc.
*
* utils.h - Miscellaneous utility functions
*/
#ifndef __LIBCAMERA_UTILS_H__
#define __LIBCAMERA_UTILS_H__
#include <memory>
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
namespace libcamera {
namespace utils {
const char *basename(const char *path);
/* C++11 doesn't provide std::make_unique */
template<typename T, typename... Args>
std::unique_ptr<T> make_unique(Args&&... args)
{
return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
}
char *secure_getenv(const char *name);
template<class InputIt1, class InputIt2>
unsigned int set_overlap(InputIt1 first1, InputIt1 last1,
InputIt2 first2, InputIt2 last2)
{
unsigned int count = 0;
while (first1 != last1 && first2 != last2) {
if (*first1 < *first2) {
++first1;
} else {
if (!(*first2 < *first1))
count++;
++first2;
}
}
return count;
}
} /* namespace utils */
} /* namespace libcamera */
#endif /* __LIBCAMERA_UTILS_H__ */
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