Operators for reading/writing DataStock to files and streams

See Operators for reading and writing data. More...

Namespaces
	FDS
	For Format of the DataStock output.
	BDS
	For buffer DataStock.

Functions
int	DataStock::helper_operator_read_base (std::iostream &ios)
	Helper function for operator<< for reading date from input streams. More...
void	DataStock::helper_operator_write_base (std::ostream &os) const
	Helper function for operator>> for writing date to output. More...

Friend operators for input/output.
The functions allow to combine DataStocks and use pointer or reference to the base class. More description of their usage in this link
std::ostream &	DataStock::operator<< (std::ostream &os, const DataStock &obj)
	Fill ostream ( ostringstream ) with text data . More...
std::iostream &	DataStock::operator>> (std::iostream &ios, DataStock &obj)
	Set a DataStock(s) with data from a iostream( e.g.,stringstream ) . More...
std::string &	DataStock::operator<< (std::string &line_csv, const DataStock &obj)
	Similar operator, but for use with string as output. More...
std::string &	DataStock::operator>> (std::string &line_csv, DataStock &obj)
	Similar operator, but can use string as input. More...

Pure virtual helper functions for operator << and >>
virtual void	DataStock::helper_operator_write (std::ostream &os) const =0
virtual void	DataStock::helper_operator_read (std::iostream &ios)=0

Specific to input/output of SimpleData
virtual void	SimpleData::helper_operator_write (std::ostream &os) const
virtual void	SimpleData::helper_operator_read (std::iostream &ios)

Specific to input/output of MultiData
virtual void	MultiData::helper_operator_write (std::ostream &os) const
virtual void	MultiData::helper_operator_read (std::iostream &ios)

Specific to input/output of DataCSV
virtual void	DataCSV::helper_operator_write (std::ostream &os) const
virtual void	DataCSV::helper_operator_read (std::iostream &ios)

Detailed Description

See Operators for reading and writing data.

Function Documentation

virtual void DataStock::helper_operator_read ( std::iostream &  ios )

pure virtual

Implemented in DataCSV, MultiData, and SimpleData.

Referenced by operator>>().

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void SimpleData::helper_operator_read ( std::iostream &  ios )

protectedvirtual

Implements DataStock.

Definition at line 389 of file DataStock.cpp.

References Utils::fromStreamToDouble(), and SimpleData::SetValue().

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void MultiData::helper_operator_read ( std::iostream &  ios )

protectedvirtual

Implements DataStock.

Definition at line 611 of file DataStock.cpp.

References Utils::fromStreamToDouble(), MultiData::nb_data, and MultiData::SetValues().

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void DataCSV::helper_operator_read ( std::iostream &  ios )

protectedvirtual

Implements DataStock.

Definition at line 894 of file DataStock.cpp.

References Utils::fromStreamToDouble(), and DataCSV::SetValues().

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int DataStock::helper_operator_read_base ( std::iostream &  ios )

protected

Helper function for operator<< for reading date from input streams.

In base class, reads the date

Parameters

is	input/output stream

Returns

status, 0 if ok, 1 if error in parsing the date

Definition at line 186 of file DataStock.cpp.

References BDS::BUFFER_DATE, Utils::ERROR_StrToTime, DataStock::SetDate(), and Utils::StringToTime_t().

Referenced by operator>>().

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virtual void DataStock::helper_operator_write ( std::ostream &  os ) const

pure virtual

Implemented in DataCSV, MultiData, and SimpleData.

Referenced by operator<<().

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void SimpleData::helper_operator_write ( std::ostream &  os ) const

protectedvirtual

Implements DataStock.

Definition at line 384 of file DataStock.cpp.

References SimpleData::GetValue(), FDS::PRECISION, and FDS::WCOL.

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void MultiData::helper_operator_write ( std::ostream &  os ) const

protectedvirtual

Implements DataStock.

Definition at line 604 of file DataStock.cpp.

References MultiData::nb_data, FDS::PRECISION, MultiData::values, and FDS::WCOL.

void DataCSV::helper_operator_write ( std::ostream &  os ) const

protectedvirtual

Implements DataStock.

Definition at line 885 of file DataStock.cpp.

References DataCSV::GetClose(), DataCSV::GetHigh(), DataCSV::GetLow(), DataCSV::GetOpen(), FDS::PRECISION, and FDS::WCOL.

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void DataStock::helper_operator_write_base ( std::ostream &  os ) const

protected

Helper function for operator>> for writing date to output.

Warning

cannot combine with std::cout, certainly also cerr, clog
Need to use an intermediate stringstream

Definition at line 173 of file DataStock.cpp.

References DataStock::GetDateString().

Referenced by operator<<().

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Friends

std::ostream& operator<< ( std::ostream &  os, const DataStock &  obj  )

friend

Fill ostream ( ostringstream ) with text data
.

Single DataStock can be used:

os << data_csv;

And multiple DataStock can be combined:

os << data_csv << data_vol;

Warning

cannot combine DataStocks with std::cout, certainly also cerr, clog
Need to use an intermediate stringstream

Parameters

os	a ostream with text data

Returns

a ref to the output os, allows to be combined

Definition at line 936 of file DataStock.cpp.

std::string& operator<< ( std::string &  line_csv, const DataStock &  obj  )

friend

Similar operator, but for use with string as output.

Call the standard friend operator>>
Single and multiple DataStock can be used:

line_csv << data_csv << data_vol

Parameters

line_csv

string containing the text data to read

Returns

reference to line_csv, should be empty after the execution

Definition at line 990 of file DataStock.cpp.

std::iostream& operator>> ( std::iostream &  ios, DataStock &  obj  )

friend

Set a DataStock(s) with data from a iostream( e.g.,stringstream )
.

Note

an input/output stream must be used

Single DataStock can be used:

ios >> data_csv;

And multiple DataStock can be combined:

ios >> data_csv >> data_vol;

Normal state of the stream after reading:

• ios.eof() : true; fail(), bad(), good() : false

Test:

• if missing data in the stream is.fail() is true or assert in debug mode
• if more data is.eof() return false

Test than the input was read correctly:

( ios.eof() == true && ios.fail() == false ) == true

Parameters

ios	a iostream with the data
obj	the DataStock object to set

Returns

a ref to the input ios, allows to be combined

Definition at line 948 of file DataStock.cpp.

std::string& operator>> ( std::string &  line_csv, DataStock &  obj  )

friend

Similar operator, but can use string as input.

If the processing is correct the input string should be empty after the execution

line_csv.empty() == true

Parameters

line_csv	string to fill with text data
obj	DataStock object to set

Returns

std::string, allow to combine operators

Definition at line 999 of file DataStock.cpp.