unsigned int OutByteFile::size(){
const unsigned int currPos = pos();
goEnd();
const unsigned int size = pos();
seek(currPos);
return size;
}
void OutByteFile::skip(unsigned int skip){
const unsigned int currentPos = pos();
const unsigned int filesize = size();
if(currentPos+skip >= filesize){
goEnd();
for(unsigned int i = filesize; i < currentPos+skip; i++ )
writeChar(0);
}else{
seek(currentPos+skip);
}
}
bool goEnd(int A[], int n, int index)
{
if (index >= n-1) return true;
int step = A[index];
bool flag = false;
for (int i = index+1; i < n && i <= index+step; i++)
{
flag = goEnd(A, n, i);
if (flag)
return true;
}
return false;
}
//Goes to the end of the file, checks the length, and then goes to the start.
unsigned long long FileIO::getFileLength()
{
fileLength = 0; unsigned long long returnInt;
if(!isBinary){//Not a binary file, therefore it is a text file
goStart(1);
std::string line;
while (std::getline(myfile, line)){
fileLength = fileLength + line.length() + 1;//Length of string plus null terminator
}
goStart(1);
}
if (isBinary){
std::streampos fsize = 0;
goEnd(1);
fileLength = myfile.tellg() - fsize;
goStart(1);
}
returnInt = fileLength; return returnInt;
}
int main()
{
///The metafunction @Metafunction.Iterator@ returns the iterator type for a given container type.
seqan::String<char> str = "admn";
seqan::Iterator<seqan::String<char> >::Type it = begin(str);
seqan::Iterator<seqan::String<char> >::Type itEnd = end(str);
///We can use iterators to iterate over the elements of a container.
while (it != itEnd) {
::std::cout << *it;
++it;
}
::std::cout << ::std::endl;
///Rooted iterators know their container (@Concept.RootedIteratorConcept|Rooted Iterator@).
///Hence, the functions @Function.goBegin@ and @Function.atEnd@ do
///not get $str$ as an argument.
///The following loop increments each character in $str$.
seqan::Iterator<seqan::String<char>, seqan::Rooted >::Type it2 = begin(str);
for (goBegin(it2); !atEnd(it2); goNext(it2))
{
++value(it2);
}
///Some iterators support an iteration in reverse order.
///Note that @Function.goPrevious@ is called before the value of $it2$ is accessed.
///Remember that the end position of a container is always the position behind the last item in the container.
goEnd(it2);
while (!atBegin(it2))
{
goPrevious(it2);
::std::cout << getValue(it2);
}
::std::cout << ::std::endl;
///@Function.assignValue@ can be used to change the value of an iterator.
assignValue(begin(str), 'X');
::std::cout << str << ::std::endl;
return 0;
}
bool canJump(int A[], int n) {
if (n == 0) return true;
return goEnd(A, n, 0);
}
