/*
* convert.cpp
*
* Created on: Aug 04, 2009
* Author: Mattias Runge
*/
#include "convert.h"
namespace atom {
namespace convert {
bool string2bool(const string s)
{
return (s == "true" || s == "1" || s == "yes");
}
int string2int(const string s)
{
istringstream in(s);
int i;
in >> i;
return i;
}
string int2string(int i)
{
ostringstream out;
out << i;
return out.str();
}
unsigned int string2uint(const string s)
{
istringstream in(s);
unsigned int i;
in >> i;
return i;
}
string uint2string(unsigned int i)
{
ostringstream out;
out << i;
return out.str();
}
float string2float(const string s)
{
istringstream in(s);
float f;
in >> f;
return f;
}
string float2string(float f)
{
ostringstream out;
out << f;
return out.str();
}
string bytes2string(byte_list bytes)
{
string str = "";
for (unsigned int n = 0; n < bytes.size(); n++)
{
str += bytes[n];
}
return str;
}
unsigned int hex2uint(string hex)
{
return bin2uint(hex2bin(hex));
}
unsigned int bin2uint(string bin)
{
unsigned int num = 0;
for (int n = bin.length() - 1; n >= 0; n--)
{
if (bin[n] == '1') num += (unsigned int)pow(2.0f, (int)(bin.length() - 1 - n));
}
return num;
}
float bin2float(string bin)
{
float num = 0;
if (bin.length() == 0) return 0.0f;
bool isNegative = false;
;
if (bin[0] == '1')
{
bin = bin_invert(bin);
isNegative = true;
}
for (int n = bin.length() - 1; n > 0; n--)
{
if (bin[n] == '1') num += pow(2.0f, (int)(bin.length() - 1 - n));
}
num /= 64.0f;
if (isNegative) num = -num;
return num;
}
string bin2hex(string bin)
{
string hex;
while (bin.size() > 0)
{
string part;
try
{
part = bin.substr(0, 4);
}
catch (std::out_of_range& e)
{
//cout << "DEBUG: bin2hex exception: " << e.what() << "\n";
//cout << "DEBUG: A bin=" << bin << endl;
continue;
}
bin.erase(0, part.size());
while (part.size() < 4)
part = "0" + part;
if (part == "0000")
hex += '0';
else if (part == "0001")
hex += '1';
else if (part == "0010")
hex += '2';
else if (part == "0011")
hex += '3';
else if (part == "0100")
hex += '4';
else if (part == "0101")
hex += '5';
else if (part == "0110")
hex += '6';
else if (part == "0111")
hex += '7';
else if (part == "1000")
hex += '8';
else if (part == "1001")
hex += '9';
else if (part == "1010")
hex += 'a';
else if (part == "1011")
hex += 'b';
else if (part == "1100")
hex += 'c';
else if (part == "1101")
hex += 'd';
else if (part == "1110")
hex += 'e';
else if (part == "1111") hex += 'f';
}
return hex;
}
string float2bin(float num, unsigned int length)
{
string bin;
///FIXME
while (bin.size() < length)
bin = "0" + bin;
return bin;
}
string hex2bin(string hex)
{
to_lower(hex);
string bin;
for (unsigned int n = 0; n < hex.length(); n++)
{
switch (hex[n])
{
case '0':
bin += "0000";
break;
case '1':
bin += "0001";
break;
case '2':
bin += "0010";
break;
case '3':
bin += "0011";
break;
case '4':
bin += "0100";
break;
case '5':
bin += "0101";
break;
case '6':
bin += "0110";
break;
case '7':
bin += "0111";
break;
case '8':
bin += "1000";
break;
case '9':
bin += "1001";
break;
case 'a':
bin += "1010";
break;
case 'b':
bin += "1011";
break;
case 'c':
bin += "1100";
break;
case 'd':
bin += "1101";
break;
case 'e':
bin += "1110";
break;
case 'f':
bin += "1111";
break;
}
}
return bin;
}
string uint2bin(unsigned int num, unsigned int length)
{
string bin;
while (num)
{
bin = char((num & 1) + '0') + bin;
num >>= 1;
}
while (bin.size() < length)
bin = "0" + bin;
return bin;
}
string uint2hex(unsigned int num, unsigned int length)
{
return bin2hex(uint2bin(num, length));
}
string bin_invert(string bin)
{
string inverted;
for (unsigned int n = 0; n < bin.length(); n++)
inverted += (bin[n] == '1' ? '0' : '1');
return inverted;
}
float LOG2of2 = log2f(2);
unsigned int stateCount2bitCount(unsigned int stateCount)
{
// Special case for zero states
if (stateCount == 0)
{
return 1;
}
return ceil(log2f(stateCount + 1) / LOG2of2);
}
}
}