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#include <iostream>
#include <string>
#include <seqan/sequence.h>
#include <seqan/stream.h>
using namespace seqan;
int main()
{
// interpret string literal as int
int x = 0;
// successful cast
std::cout << "success=" << lexicalCast(x, "123");
std::cout << ", x=" << x << "\n";
// unsuccessful cast
std::cout << "success=" << lexicalCast(x, "42a");
std::cout << ", x=" << x << "\n";
// interpret std::string as int
std::cout << "success=" << lexicalCast(x, std::string("234"));
std::cout << ", x=" << x << "\n";
// interpret CharString as int
std::cout << "success=" << lexicalCast(x, CharString("345"));
std::cout << ", x=" << x << "\n";
// interpret infix as int
CharString str = "123";
std::cout << "success=" << lexicalCast(x, infix(str, 1, 2));
std::cout << ", x=" << x << "\n";
// interpret literal as float and double
float f = -1;
double d = -1;
std::cout << "success=" << lexicalCast(f, "3.1");
std::cout << ", f=" << f << "\n";
std::cout << "success=" << lexicalCast(d, "4.2");
std::cout << ", d=" << d << "\n";
// demonstrate throwing of exceptions with lexicalCast()
try
{
x = lexicalCast<int>("a");
}
catch (BadLexicalCast const & badCast)
{
std::cout << "error: " << badCast.what() << "\n";
}
// demonstrate throwing of exceptions with lexicalCastWithException
try
{
lexicalCastWithException(x, "b");
}
catch (BadLexicalCast const & badCast)
{
std::cout << "error: " << badCast.what() << "\n";
}
return 0;
}
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