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jakcron
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
/**
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* @file binary_utils.h
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* @brief Declaration of inlines and classes for literal bit manipulation and other low-level operations.
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* @author Jack (jakcron)
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* @version 0.1
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* @date 2020/12/20
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*/
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#pragma once
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#include <tc/types.h>
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namespace tc { namespace bn {
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/**
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* @brief Generate struct magic 32bit number.
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* @details This generates a little endian 32bit integer from char[4].
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*
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* @param[in] magic Pointer to array of magic bytes.
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*
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* @return Little endian magic uint32_t.
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*/
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constexpr uint32_t make_struct_magic_uint32(const char magic[4])
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{
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return uint32_t((uint32_t)(magic[3]) << 24 | (uint32_t)(magic[2]) << 16 | (uint32_t)(magic[1]) << 8 | (uint32_t)(magic[0]));
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}
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/**
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* @brief Generate struct magic 64bit number.
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* @details This generates a little endian 64bit integer from char[8].
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*
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* @param[in] magic Pointer to array of magic bytes.
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*
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* @return Little endian magic uint64_t.
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*/
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constexpr uint64_t make_struct_magic_uint64(const char magic[8])
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{
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return uint64_t((uint64_t)(magic[7]) << 56 | (uint64_t)(magic[6]) << 48 | (uint64_t)(magic[5]) << 40 | (uint64_t)(magic[4]) << 32 | (uint64_t)(magic[3]) << 24 | (uint64_t)(magic[2]) << 16 | (uint64_t)(magic[1]) << 8 | (uint64_t)(magic[0]));
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}
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}} // namespace tc::bn
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