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converting QuantLib date back to mm/dd/yyyy

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Pavan Shah-2

converting QuantLib date back to mm/dd/yyyy

hello,

I am trying to output dates into a csv file in one cell . However, right now they are being output as June 22nd 2012 in two different cells.

I just used the ofstream object to ouput (nothing fancy).

How can I convert a QuantLib date into mm/dd/yyyy and ensure that it is output in one cell?

thanks

Pavan

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Pavan Shah-2

Re: converting QuantLib date back to mm/dd/yyyy

does anyone have a suggestion?

thanks

Pavan

On Tue, Jan 29, 2013 at 8:08 AM, Pavan Shah <[hidden email]> wrote:

hello,
I am trying to output dates into a csv file in one cell . However, right now they are being output as June 22nd 2012 in two different cells.

I just used the ofstream object to ouput (nothing fancy).

How can I convert a QuantLib date into mm/dd/yyyy and ensure that it is output in one cell?

thanks
Pavan

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Piter Dias-4

Re: converting QuantLib date back to mm/dd/yyyy

You may try io::short_date(date) at date.hpp.

On 2013-01-29 21:53, Pavan Shah wrote:

does anyone have a suggestion?
thanks

Pavan

On Tue, Jan 29, 2013 at 8:08 AM, Pavan Shah <[hidden email]> wrote:

hello,
I am trying to output dates into a csv file in one cell . However, right now they are being output as June 22nd 2012 in two different cells.

I just used the ofstream object to ouput (nothing fancy).

How can I convert a QuantLib date into mm/dd/yyyy and ensure that it is output in one cell?

thanks

Pavan
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Oleg Goldshmidt

Re: converting QuantLib date back to mm/dd/yyyy

In reply to this post by Pavan Shah-2

On Tue, Jan 29, 2013 at 6:08 PM, Pavan Shah <[hidden email]> wrote:

> How can I convert a QuantLib date into mm/dd/yyyy and ensure that it is
> output in one cell?

If you have Date d you can do

char s[11] = {0};
snprintf(s,11,"%02d/%02d/%04d",d.month(),d.dayOfMonth(),d.year());

- then output s. It's not a QuantLib-specific question - it looks like
basic C/C++ ?

--
Oleg Goldshmidt | [hidden email]

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Ballabio Gerardo-4

R: converting QuantLib date back to mm/dd/yyyy

Da: Oleg Goldshmidt [mailto:[hidden email]]
> It's not a QuantLib-specific question - it looks like basic C/C++ ?

Since when is Date part of standard C/C++?

Also, snprintf is the C way to print things. Sure you can use it in C++, too, but if you'd like to do things "in the C++ style", you should use streams:

std::ofstream outfile("...");
outfile << d.month() << "/" << d.dayOfMonth() << "/" << d.year();

This won't give you trailing zeros, i.e., 1 January 2013 will show up as 1/1/2013 rather than 01/01/2013. If you need the zeros, you can use manipulators. Something like this:

#include <iomanip>
outfile << std::setwidth(2) << std::setfill('0') << d.month() << "/" << std::setwidth(2) << std::setfill('0') << d.dayOfMonth() << "/" << d.year();

but check the syntax because I don't use these very often and I'm not sure this is correct. I'm not sure either that the second setfill is required (I am quite sure the setwidth is).

Gerardo

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Luigi Ballabio

Re: R: converting QuantLib date back to mm/dd/yyyy

or

outfile << io::short_date(d);

as Piter suggested earlier. Internally, it uses manipulators like you
did (and restores their status after it's done).

Luigi

On Wed, Jan 30, 2013 at 2:54 PM, Ballabio Gerardo
<[hidden email]> wrote:

> Da: Oleg Goldshmidt [mailto:[hidden email]]
>> It's not a QuantLib-specific question - it looks like basic C/C++ ?
>
> Since when is Date part of standard C/C++?
>
> Also, snprintf is the C way to print things. Sure you can use it in C++, too, but if you'd like to do things "in the C++ style", you should use streams:
>
> std::ofstream outfile("...");
> outfile << d.month() << "/" << d.dayOfMonth() << "/" << d.year();
>
> This won't give you trailing zeros, i.e., 1 January 2013 will show up as 1/1/2013 rather than 01/01/2013. If you need the zeros, you can use manipulators. Something like this:
>
> #include <iomanip>
> outfile << std::setwidth(2) << std::setfill('0') << d.month() << "/" << std::setwidth(2) << std::setfill('0') << d.dayOfMonth() << "/" << d.year();
>
> but check the syntax because I don't use these very often and I'm not sure this is correct. I'm not sure either that the second setfill is required (I am quite sure the setwidth is).
>
> Gerardo
>
>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
> <html xmlns="http://www.w3.org/1999/xhtml">
> <head></head>
> <body>
> <div style="font-family:Calibri;font-size:10px">
> Banca Profilo S.p.A.
> Corso Italia, 49 - 20122 Milano - Tel. 02 58408.1, Fax 02 5831 6057
> Capitale Sociale Euro 136.794.106,00 i.v.
> Iscrizione al Registro Imprese di Milano, C.F. e P.IVA 09108700155 - [hidden email]
> Iscritta all’Albo delle Banche e dei Gruppi bancari
> Aderente al Fondo Interbancario di Tutela dei depositi
> Aderente al Conciliatore Bancario Finanziario e all’Arbitro Bancario Finanziario
> Appartenente al Gruppo bancario Banca Profilo e soggetta all’attività di direzione e coordinamento di Arepo BP S.p.A.
>
>
> DISCLAIMER:
> The information transmitted may contain confidential and/or privileged material.
> Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon,
> this information by persons or entities other than the intended recipient is prohibited.
> If you received this in error, please contact the sender and delete the material from any computer.
> </div>
> </body>
> </html>
>
>
> ------------------------------------------------------------------------------
> Everyone hates slow websites. So do we.
> Make your web apps faster with AppDynamics
> Download AppDynamics Lite for free today:
> http://p.sf.net/sfu/appdyn_d2d_jan
> _______________________________________________
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Pavan Shah-2

Re: R: converting QuantLib date back to mm/dd/yyyy

sorry Luigi, peter

but which header file do I need to have as my include directive?

thanks

pavan

On Wed, Jan 30, 2013 at 6:06 AM, Luigi Ballabio <[hidden email]> wrote:

or

outfile << io::short_date(d);

as Piter suggested earlier. Internally, it uses manipulators like you
did (and restores their status after it's done).

Luigi

On Wed, Jan 30, 2013 at 2:54 PM, Ballabio Gerardo
<[hidden email]> wrote:
> Da: Oleg Goldshmidt [mailto:[hidden email]]
>> It's not a QuantLib-specific question - it looks like basic C/C++ ?
>
> Since when is Date part of standard C/C++?
>
> Also, snprintf is the C way to print things. Sure you can use it in C++, too, but if you'd like to do things "in the C++ style", you should use streams:
>
> std::ofstream outfile("...");
> outfile << d.month() << "/" << d.dayOfMonth() << "/" << d.year();
>
> This won't give you trailing zeros, i.e., 1 January 2013 will show up as 1/1/2013 rather than 01/01/2013. If you need the zeros, you can use manipulators. Something like this:
>
> #include <iomanip>
> outfile << std::setwidth(2) << std::setfill('0') << d.month() << "/" << std::setwidth(2) << std::setfill('0') << d.dayOfMonth() << "/" << d.year();
>
> but check the syntax because I don't use these very often and I'm not sure this is correct. I'm not sure either that the second setfill is required (I am quite sure the setwidth is).
>
> Gerardo
>
>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
> <html xmlns="http://www.w3.org/1999/xhtml">
> <head></head>
> <body>
> <div style="font-family:Calibri;font-size:10px">
> Banca Profilo S.p.A.
> Corso Italia, 49 - 20122 Milano - Tel. 02 58408.1, Fax 02 5831 6057
> Capitale Sociale Euro 136.794.106,00 i.v.
> Iscrizione al Registro Imprese di Milano, C.F. e P.IVA 09108700155 - [hidden email]
> Iscritta all’Albo delle Banche e dei Gruppi bancari
> Aderente al Fondo Interbancario di Tutela dei depositi
> Aderente al Conciliatore Bancario Finanziario e all’Arbitro Bancario Finanziario
> Appartenente al Gruppo bancario Banca Profilo e soggetta all’attività di direzione e coordinamento di Arepo BP S.p.A.
>
>
> DISCLAIMER:
> The information transmitted may contain confidential and/or privileged material.
> Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon,
> this information by persons or entities other than the intended recipient is prohibited.
> If you received this in error, please contact the sender and delete the material from any computer.
> </div>
> </body>
> </html>
>
>

> ------------------------------------------------------------------------------
> Everyone hates slow websites. So do we.
> Make your web apps faster with AppDynamics
> Download AppDynamics Lite for free today:
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Luigi Ballabio

Re: R: converting QuantLib date back to mm/dd/yyyy

short_date is in <ql/time/date.hpp>, which you're already including if
you're using the Date class. What is the error?

On Thu, Jan 31, 2013 at 5:32 PM, Pavan Shah <[hidden email]> wrote:

> sorry Luigi, peter
> but which header file do I need to have as my include directive?
>
> thanks
> pavan
>
>
> On Wed, Jan 30, 2013 at 6:06 AM, Luigi Ballabio <[hidden email]>
> wrote:
>>
>> or
>>
>> outfile << io::short_date(d);
>>
>> as Piter suggested earlier. Internally, it uses manipulators like you
>> did (and restores their status after it's done).
>>
>> Luigi
>>
>>
>> On Wed, Jan 30, 2013 at 2:54 PM, Ballabio Gerardo
>> <[hidden email]> wrote:
>> > Da: Oleg Goldshmidt [mailto:[hidden email]]
>> >> It's not a QuantLib-specific question - it looks like basic C/C++ ?
>> >
>> > Since when is Date part of standard C/C++?
>> >
>> > Also, snprintf is the C way to print things. Sure you can use it in C++,
>> > too, but if you'd like to do things "in the C++ style", you should use
>> > streams:
>> >
>> > std::ofstream outfile("...");
>> > outfile << d.month() << "/" << d.dayOfMonth() << "/" << d.year();
>> >
>> > This won't give you trailing zeros, i.e., 1 January 2013 will show up as
>> > 1/1/2013 rather than 01/01/2013. If you need the zeros, you can use
>> > manipulators. Something like this:
>> >
>> > #include <iomanip>
>> > outfile << std::setwidth(2) << std::setfill('0') << d.month() << "/"
>> > << std::setwidth(2) << std::setfill('0') << d.dayOfMonth() << "/" <<
>> > d.year();
>> >
>> > but check the syntax because I don't use these very often and I'm not
>> > sure this is correct. I'm not sure either that the second setfill is
>> > required (I am quite sure the setwidth is).
>> >
>> > Gerardo
>> >
>> >
>> > <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
>> > "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
>> > <html xmlns="http://www.w3.org/1999/xhtml">
>> > <head></head>
>> > <body>
>> > <div style="font-family:Calibri;font-size:10px">
>> > Banca Profilo S.p.A.
>> > Corso Italia, 49 - 20122 Milano - Tel. 02 58408.1, Fax 02 5831 6057
>> > Capitale Sociale Euro 136.794.106,00 i.v.
>> > Iscrizione al Registro Imprese di Milano, C.F. e P.IVA 09108700155 -
>> > [hidden email]
>> > Iscritta all’Albo delle Banche e dei Gruppi bancari
>> > Aderente al Fondo Interbancario di Tutela dei depositi
>> > Aderente al Conciliatore Bancario Finanziario e all’Arbitro Bancario
>> > Finanziario
>> > Appartenente al Gruppo bancario Banca Profilo e soggetta all’attività di
>> > direzione e coordinamento di Arepo BP S.p.A.
>> >
>> >
>> > DISCLAIMER:
>> > The information transmitted may contain confidential and/or privileged
>> > material.
>> > Any review, retransmission, dissemination or other use of, or taking of
>> > any action in reliance upon,
>> > this information by persons or entities other than the intended
>> > recipient is prohibited.
>> > If you received this in error, please contact the sender and delete the
>> > material from any computer.
>> > </div>
>> > </body>
>> > </html>
>> >
>> >
>> >
>> > ------------------------------------------------------------------------------
>> > Everyone hates slow websites. So do we.
>> > Make your web apps faster with AppDynamics
>> > Download AppDynamics Lite for free today:
>> > http://p.sf.net/sfu/appdyn_d2d_jan
>> > _______________________________________________
>> > QuantLib-users mailing list
>> > [hidden email]
>> > https://lists.sourceforge.net/lists/listinfo/quantlib-users
>
>

Pavan Shah-2

Re: R: converting QuantLib date back to mm/dd/yyyy

no error

I haven't tried it yet because I didn't have this as my include directive.

No, I have been using <ql/quantlib.hpp> and <ql/utilities/dataparsers.hpp> .

I have been using Date class with these two directives.

I will give it a try with <ql/time/date.hpp>

thanks

Pavan

On Thu, Jan 31, 2013 at 9:04 AM, Luigi Ballabio <[hidden email]> wrote:

short_date is in <ql/time/date.hpp>, which you're already including if
you're using the Date class. What is the error?

On Thu, Jan 31, 2013 at 5:32 PM, Pavan Shah <[hidden email]> wrote:
> sorry Luigi, peter
> but which header file do I need to have as my include directive?
>
> thanks
> pavan
>
>
> On Wed, Jan 30, 2013 at 6:06 AM, Luigi Ballabio <[hidden email]>
> wrote:
>>
>> or
>>
>> outfile << io::short_date(d);
>>
>> as Piter suggested earlier. Internally, it uses manipulators like you
>> did (and restores their status after it's done).
>>
>> Luigi
>>
>>
>> On Wed, Jan 30, 2013 at 2:54 PM, Ballabio Gerardo
>> <[hidden email]> wrote:
>> > Da: Oleg Goldshmidt [mailto:[hidden email]]
>> >> It's not a QuantLib-specific question - it looks like basic C/C++ ?
>> >
>> > Since when is Date part of standard C/C++?
>> >
>> > Also, snprintf is the C way to print things. Sure you can use it in C++,
>> > too, but if you'd like to do things "in the C++ style", you should use
>> > streams:
>> >
>> > std::ofstream outfile("...");
>> > outfile << d.month() << "/" << d.dayOfMonth() << "/" << d.year();
>> >
>> > This won't give you trailing zeros, i.e., 1 January 2013 will show up as
>> > 1/1/2013 rather than 01/01/2013. If you need the zeros, you can use
>> > manipulators. Something like this:
>> >
>> > #include <iomanip>
>> > outfile << std::setwidth(2) << std::setfill('0') << d.month() << "/"
>> > << std::setwidth(2) << std::setfill('0') << d.dayOfMonth() << "/" <<
>> > d.year();
>> >
>> > but check the syntax because I don't use these very often and I'm not
>> > sure this is correct. I'm not sure either that the second setfill is
>> > required (I am quite sure the setwidth is).
>> >
>> > Gerardo
>> >
>> >
>> > <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
>> > "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
>> > <html xmlns="http://www.w3.org/1999/xhtml">
>> > <head></head>
>> > <body>
>> > <div style="font-family:Calibri;font-size:10px">
>> > Banca Profilo S.p.A.
>> > Corso Italia, 49 - 20122 Milano - Tel. 02 58408.1, Fax 02 5831 6057
>> > Capitale Sociale Euro 136.794.106,00 i.v.
>> > Iscrizione al Registro Imprese di Milano, C.F. e P.IVA 09108700155 -
>> > [hidden email]
>> > Iscritta all’Albo delle Banche e dei Gruppi bancari
>> > Aderente al Fondo Interbancario di Tutela dei depositi
>> > Aderente al Conciliatore Bancario Finanziario e all’Arbitro Bancario
>> > Finanziario
>> > Appartenente al Gruppo bancario Banca Profilo e soggetta all’attività di
>> > direzione e coordinamento di Arepo BP S.p.A.
>> >
>> >
>> > DISCLAIMER:
>> > The information transmitted may contain confidential and/or privileged
>> > material.
>> > Any review, retransmission, dissemination or other use of, or taking of
>> > any action in reliance upon,
>> > this information by persons or entities other than the intended
>> > recipient is prohibited.
>> > If you received this in error, please contact the sender and delete the
>> > material from any computer.
>> > </div>
>> > </body>
>> > </html>
>> >
>> >
>> >
>> > ------------------------------------------------------------------------------
>> > Everyone hates slow websites. So do we.
>> > Make your web apps faster with AppDynamics
>> > Download AppDynamics Lite for free today:
>> > http://p.sf.net/sfu/appdyn_d2d_jan
>> > _______________________________________________
>> > QuantLib-users mailing list
>> > [hidden email]
>> > https://lists.sourceforge.net/lists/listinfo/quantlib-users
>
>