87 lines
2.0 KiB
C++
87 lines
2.0 KiB
C++
#pragma once
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#include <cstdarg>
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#include <string>
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#if defined(_MSC_VER) && _MSC_VER < 1600
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#include <basetsd.h>
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typedef UINT8 uint8_t;
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typedef UINT16 uint16_t;
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#else
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#include <cstdint>
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#endif
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#ifdef _MSC_VER
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#define ATTRIBUTE_FORMAT_PRINTF(a, b)
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#else
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#define ATTRIBUTE_FORMAT_PRINTF(a, b) __attribute__((format(printf, a, b)))
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#endif
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std::string StrFormat(const char* format, ...) ATTRIBUTE_FORMAT_PRINTF(1, 2);
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std::string StrFormatV(const char* format, va_list va);
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namespace {
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const char g_aHexDigits[16] = {
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'0', '1', '2', '3', '4', '5', '6', '7',
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'8', '9', 'A', 'B', 'C', 'D', 'E', 'F',
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};
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// No buffer overflow check or null termination. Use with caution.
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inline char* StrBufferAppendByteAsHex(char* cp, uint8_t n)
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{
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*cp++ = g_aHexDigits[(n >> 4) & 0x0f];
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*cp++ = g_aHexDigits[(n >> 0) & 0x0f];
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return cp;
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}
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// No buffer overflow check or null termination. Use with caution.
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inline char* StrBufferAppendWordAsHex(char* cp, uint16_t n)
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{
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*cp++ = g_aHexDigits[(n >> 12) & 0x0f];
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*cp++ = g_aHexDigits[(n >> 8) & 0x0f];
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*cp++ = g_aHexDigits[(n >> 4) & 0x0f];
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*cp++ = g_aHexDigits[(n >> 0) & 0x0f];
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return cp;
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}
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inline std::string& StrAppendByteAsHex(std::string& s, uint8_t n)
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{
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const char hex[2] = { g_aHexDigits[(n >> 4) & 0x0f],
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g_aHexDigits[(n >> 0) & 0x0f] };
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return s.append(hex, 2);
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}
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inline std::string& StrAppendWordAsHex(std::string& s, uint16_t n)
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{
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const char hex[4] = { g_aHexDigits[(n >> 12) & 0x0f],
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g_aHexDigits[(n >> 8) & 0x0f],
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g_aHexDigits[(n >> 4) & 0x0f],
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g_aHexDigits[(n >> 0) & 0x0f] };
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return s.append(hex, 4);
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}
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inline std::string ByteToHexStr(uint8_t n)
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{
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std::string s;
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StrAppendByteAsHex(s, n);
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return s;
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}
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inline std::string WordToHexStr(uint16_t n)
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{
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std::string s;
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StrAppendWordAsHex(s, n);
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return s;
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}
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inline std::string DWordToHexStr(uint32_t n)
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{
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std::string s;
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StrAppendWordAsHex(s, n >> 16);
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StrAppendWordAsHex(s, n);
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return s;
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}
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} // namespace
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