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/**
* @file lldate.h
* @author Phoenix
* @date 2006-02-05
* @brief Declaration of a simple date class.
*
* Copyright (c) 2006-$CurrentYear$, Linden Research, Inc.
* $License$
*/
#ifndef LL_LLDATE_H
#define LL_LLDATE_H
#include <iosfwd>
#include "stdtypes.h"
/**
* @class LLDate
* @brief This class represents a particular point in time in UTC.
*
* The date class represents a point in time after epoch - 1970-01-01.
*/
class LLDate
{
public:
/**
* @brief Construct a date equal to epoch.
*/
LLDate();
/**
* @brief Construct a date equal to epoch.
*/
LLDate(const LLDate& date);
/**
* @brief Construct a date from a seconds since epoch value.
*
* @pararm seconds_since_epoch The number of seconds since UTC epoch.
*/
LLDate(F64 seconds_since_epoch);
/**
* @brief Construct a date from a string representation
*
* The date is constructed in the <code>fromString()</code>
* method. See that method for details of supported formats.
* If that method fails to parse the date, the date is set to epoch.
* @param iso8601_date An iso-8601 compatible representation of the date.
*/
LLDate(const std::string& iso8601_date);
/**
* @brief Return the date as in ISO-8601 string.
*
* @return A string representation of the date.
*/
std::string asString() const;
std::string asRFC1123() const;
void toStream(std::ostream&) const;
void toHTTPDateStream(std::ostream&) const;
/**
* @brief Set the date from an ISO-8601 string.
*
* The parser only supports strings conforming to
* YYYYF-MM-DDTHH:MM:SS.FFZ where Y is year, M is month, D is day,
* H is hour, M is minute, S is second, F is sub-second, and all
* other characters are literal.
* If this method fails to parse the date, the previous date is
* retained.
* @param iso8601_date An iso-8601 compatible representation of the date.
* @return Returns true if the string was successfully parsed.
*/
bool fromString(const std::string& iso8601_date);
bool fromStream(std::istream&);
/**
* @brief Return the date in seconds since epoch.
*
* @return The number of seconds since epoch UTC.
*/
F64 secondsSinceEpoch() const;
/**
* @brief Set the date in seconds since epoch.
*
* @param seconds The number of seconds since epoch UTC.
*/
void secondsSinceEpoch(F64 seconds);
private:
F64 mSecondsSinceEpoch;
};
// Helper function to stream out a date
std::ostream& operator<<(std::ostream& s, const LLDate& date);
// Helper function to stream in a date
std::istream& operator>>(std::istream& s, LLDate& date);
const static std::string weekdays[] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
const static std::string months[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
#endif // LL_LLDATE_H
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