How can I creat a time class?

[learning_C++]

I hope to make a time class or a function. So I can make use it to
show time where I want. But it does not work.
Please help me!
Thanks,

class Time {
public:
string get_current_time();
};

string Time::get_current_time(){
string timestr;
time_t rawtime;
struct tm * timeinfo;
time ( &rawtime );
timeinfo = localtime ( &rawtime );
timestr=asctime(timeinfo);
}

or I try to make a function like this:
string get_current_time(){
string timestr;
time_t rawtime;
struct tm * timeinfo;
time_t time ( &rawtime );
timeinfo = localtime ( &rawtime );
timestr=asctime(timeinfo);
}

it still does not work.

string timestr;
time_t rawtime;
struct tm * timeinfo;
time_t time ( &rawtime );
timeinfo = localtime ( &rawtime );
timestr=asctime(timeinfo);
}

 

[Victor Bazarov]

I hope to make a time class or a function. So I can make use it to
show time where I want. But it does not work.

Please explain what you mean by "does not work". Read the FAQ 5.8.

 

[osmium]

I hope to make a time class or a function. So I can make use it to
show time where I want. But it does not work.
Please help me!
Thanks,

class Time {
public:
string get_current_time();
};

string Time::get_current_time(){
string timestr;
time_t rawtime;
struct tm * timeinfo;
time ( &rawtime );
timeinfo = localtime ( &rawtime );
timestr=asctime(timeinfo);
}

The first thing I note is that the function promises to return a string.
But where is the code that casues that to happen?
<snip>

 

[Default User]

I hope to make a time class or a function. So I can make use it to
show time where I want. But it does not work.

What do you mean, "does not work"? Doesn't compile? Compiles but
crashes when it runs? Runs fine but gives wrong answers?

Read the following:

http://www.parashift.com/c++-faq-lite/how-to-post.html#faq-5.8




Brian Rodenborn

 

[Evan Carew]

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Learning,

I hope to make a time class or a function. So I can make use it to
show time where I want. But it does not work.
Please help me!
Thanks,

One shortcut would be to use Boost's gregorian::date class. For an in
depth desctiption, see http://boost.org/libs/date_time/doc/class_date.html

where you create a data class, get local date, then cast it to a string.

Evan
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