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Account for high-ascii (RIPD-464)

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This commit is contained in:
Nik Bougalis
2014-08-09 17:20:28 -07:00
parent d7b054c3f6
commit d562c5b2d5
1 changed files with 18 additions and 7 deletions
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25
src/ripple/types/api/Base58.h
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@@ -32,8 +32,11 @@
#ifndef RIPPLE_TYPES_BASE58_H #ifndef RIPPLE_TYPES_BASE58_H
#define RIPPLE_TYPES_BASE58_H #define RIPPLE_TYPES_BASE58_H
#include <array>
#include <iterator> #include <iterator>
#include <string>
#include <type_traits> #include <type_traits>
#include <vector>
#include <ripple/types/api/Blob.h> #include <ripple/types/api/Blob.h>
@@ -50,14 +53,22 @@ public:
explicit Alphabet (char const* chars) explicit Alphabet (char const* chars)
: m_chars (chars) : m_chars (chars)
{ {
std::fill (m_inverse, m_inverse + 128, -1); assert (m_inverse.size () >= m_chars.length ());
int i (0);
for (char const* c (chars); *c; ++c) m_inverse.fill (-1);
m_inverse [*c] = i++;
int i = 0;
for (auto c : m_chars)
{
assert ((c >= 0) && (c < m_inverse.size ()));
assert (m_inverse[c] == -1);
m_inverse[c] = i++;
}
} }
char const* chars () const char const* chars () const
{ return m_chars; } { return m_chars.c_str (); }
char to_char (int digit) const char to_char (int digit) const
{ return m_chars [digit]; } { return m_chars [digit]; }
@@ -69,8 +80,8 @@ public:
{ return m_inverse [c]; } { return m_inverse [c]; }
private: private:
char const* m_chars; std::string const m_chars;
int m_inverse [128]; std::array <int, 256> m_inverse;
}; };
static Alphabet const& getBitcoinAlphabet (); static Alphabet const& getBitcoinAlphabet ();