leonetienne/GeneralUtility
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Abstracted BaseX_2_Y to work with arbitrary containers and digit-types

Browse Source
This commit is contained in:
Leonetienne
2022-02-27 19:27:18 +01:00
parent 63400955af
commit 6e62b312ce
3 changed files with 125 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
Src/GeneralUtility.cpp
View File

@@ -1,55 +1,6 @@
#include "GeneralUtility.h"
#include <string>
std::string GeneralUtility::BaseX_2_Y(const std::string &num, const std::string &set_in, const std::string &set_out, const std::uint32_t minOutLen) {
if ((set_in.length() == 0) || (set_out.length() == 0))
throw std::logic_error("Can't convert from or to base0! Please supply a nonempty set!");
std::stringstream ss;
// Generate a 0-value string for inbase
ss << set_in[0];
const std::string zeroInbase = ss.str();
ss.str("");
if (num != zeroInbase) {
std::string buf = num;
while (buf != zeroInbase) {
const auto divRes = DigitstringDivision(buf, set_out.length(), set_in);
const std::uint64_t mod = divRes.second;
buf = divRes.first;
ss << set_out[mod];
}
// Now reverse buf
buf = ss.str();
ss.str("");
for (std::size_t i = 0; i < buf.length(); i++)
ss << buf[buf.length() - i - 1];
}
else
{
// If num is 0, just pass a null-value. The algorithm would hang otherwise.
ss << set_out[0];
}
// Add as much null-values to the left as requested.
if (ss.str().length() < minOutLen)
{
const std::size_t cachedLen = ss.str().length();
const std::string cachedStr = ss.str();
ss.str("");
for (std::size_t i = 0; i < minOutLen - cachedLen; i++)
ss << set_out[0];
ss << cachedStr;
}
return ss.str();
}
std::string GeneralUtility::Base10_2_X(const std::uint64_t &num, const std::string &set, const std::uint32_t minOutLen) {
// Convert num to a string
std::stringstream ss;
@@ -57,7 +8,7 @@ std::string GeneralUtility::Base10_2_X(const std::uint64_t &num, const std::stri
const std::string numStr = ss.str();
// Use BaseX_2_Y to convert to outbase
const std::string convertedNum = BaseX_2_Y(numStr, "0123456789", set, minOutLen);
const std::string convertedNum = BaseX_2_Y<std::string, std::string>(numStr, "0123456789", set, minOutLen);
// return it
return convertedNum;