31 lines
753 B
C++
31 lines
753 B
C++
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#ifndef _ELFPP_TO_HEX_HH_
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#define _ELFPP_TO_HEX_HH_
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#include <string>
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#include <type_traits>
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template<typename T>
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std::string
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to_hex(T v)
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{
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static_assert(std::is_integral<T>::value,
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"to_hex applied to non-integral type");
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if (v == 0)
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return std::string("0");
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char buf[sizeof(T)*2 + 1];
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char *pos = &buf[sizeof(buf)-1];
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*pos-- = '\0';
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while (v && pos >= buf) {
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int digit = v & 0xf;
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if (digit < 10)
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*pos = '0' + digit;
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else
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*pos = 'a' + (digit - 10);
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pos--;
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v >>= 4;
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}
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return std::string(pos + 1);
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}
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#endif // _ELFPP_TO_HEX_HH_
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