dev-cpp-users Mailing List for Dev-C++

Try the following:

              cin.get();  // dummy input
or
             system("pause");

This doesn't seem to be required anymore in Windows 8




On Sat, Apr 27, 2013 at 11:54 PM, Wes Madeira <nom...@ya...> wrote:

> I am just starting to learn about programming and the use of text editor's
> and compilers. I have installed Dev-C++ and was able to successfully run a
> program, however I can not get my windows "cmd" window to pop up showing
> the programs result. All I get is the window of Dev-c++ telling me it
> worked. What setting must I change in order to have the "cmd" window pop up?
>
> Thank you
> Wes Madeira
>
>
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I am just starting to learn about programming and the use of text editor's and compilers. I have installed Dev-C++ and was able to successfully run a program, however I can not get my windows "cmd" window to pop up showing the programs result. All I get is the window of Dev-c++ telling me it worked. What setting must I change in order to have the "cmd" window pop up?

Thank you 

Wes Madeira

Dne 2.4.2013 11:52, Leslaw Bieniasz napsal(a):> Hi,
>
> I am beginning to work with DevC++ and MInGW compiler, and I have a few
> questions:
>
> 1) I notice that the method name() of the type_info object returned by
> the operator typeid() does not return the exact class name (when called
> for a class object), but the class name preceded by some digits. Is this
> a normal behaviour or some bug in the compiler?

C++ standard does not define what exactly it should return, so basically
everything is OK. c++filt.exe in the bin directory should be able to
demangle it.

> 3) I notice that the size of the executables (for console type
> applications) exceeds several times the size that I have previously
> obtained by using Borland C++ Builder. Is there any way (compiler
> options?) to reduce this size, and what is generally the reason
> for this behaviour?

Turn off generating of debugging information and enable stripping
of executable when Linking. It should be somewhere in the Project Options,
Compiler settings, Linker. GCC has also -Os setting for optimization for
size. But the biggest difference should do the striping. You can also strip
already build executable using the strip.exe from the bin directory.

> 5) I wonder if anybody has experiences with creating DLLs that
> cooperate with MS C++ Visual Studio - produced GUIs?
> This is something that I need to do, because I need long double
> variables offered by MInGW and DevCPP, but Visual Studio should
> be better for making a GUI, although it does not provide
> support for long doubles. Will such a combination work?

You will have problems in passing the long double value to/from gui, you would
have to either pass it as string or just double or something like that. Also
note that the free Visual C++ Express does not support MFC, only .Net framework
GUI libraries which uses completely non-standard C++ dialect.
If I were you I would use wxWidgets library for GUI, it's something like MFC,
there are some tools which help with layouting of forms, eg. wxDev-C++, although
the quality of these tools vary and none of them of course equals to MFC support
in full version of Visual Studio.

Regards,
Michal Molhanec

sorry french only
Le 02/04/2013 11:52, Leslaw Bieniasz a écrit :
>
>
> Hi,
>
> I am beginning to work with DevC++ and MInGW compiler, and I have a few
> questions:
>
> 1) I notice that the method name() of the type_info object returned by
> the operator typeid() does not return the exact class name (when called
> for a class object), but the class name preceded by some digits. Is this
> a normal behaviour or some bug in the compiler?
>
> 2) I have experimented a bit with the long double variable type,
> and I notice that it does, in fact, have an improved precision
> over the standard double variables. However, it is not possible
> to substitute a long double variable with a value exceeding the
> range of double variables (values greater than about 1.0e308).
> I have experienced a similar problem with the Borland C++ Builder.
> Is there any way to force the long double variables to accept
> the values from the entire range theoretically expected for these
> variables?
>
> 3) I notice that the size of the executables (for console type
> applications) exceeds several times the size that I have previously
> obtained by using Borland C++ Builder. Is there any way (compiler
> options?) to reduce this size, and what is generally the reason
> for this behaviour?
>
> 4) After compiling successfully a pretty largish project,
> I get quite many warnings:
>
> [Warning] unknown escape sequence '\T'
>
> These seem to occur either in files indicated in the compiler
> message window (bottom of the IDE screen), or the name of the file
> is not indicated. An attempt to click on the message, to see
> the place where the warning occurs, does not work. What can be
> the reson for these messages, and how to eliminate the problem?
>
> 5) I wonder if anybody has experiences with creating DLLs that
> cooperate with MS C++ Visual Studio - produced GUIs?
> This is something that I need to do, because I need long double
> variables offered by MInGW and DevCPP, but Visual Studio should
> be better for making a GUI, although it does not provide
> support for long doubles. Will such a combination work?
>
> Leslaw
>
>
>
>
>
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>
>
>

Hi,

I am beginning to work with DevC++ and MInGW compiler, and I have a few
questions:

1) I notice that the method name() of the type_info object returned by 
the operator typeid() does not return the exact class name (when called
for a class object), but the class name preceded by some digits. Is this
a normal behaviour or some bug in the compiler?

2) I have experimented a bit with the long double variable type,
and I notice that it does, in fact, have an improved precision
over the standard double variables. However, it is not possible
to substitute a long double variable with a value exceeding the
range of double variables (values greater than about 1.0e308).
I have experienced a similar problem with the Borland C++ Builder.
Is there any way to force the long double variables to accept
the values from the entire range theoretically expected for these 
variables?

3) I notice that the size of the executables (for console type 
applications) exceeds several times the size that I have previously
obtained by using Borland C++ Builder. Is there any way (compiler 
options?) to reduce this size, and what is generally the reason
for this behaviour?

4) After compiling successfully a pretty largish project,
I get quite many warnings:

[Warning] unknown escape sequence '\T'

These seem to occur either in files indicated in the compiler
message window (bottom of the IDE screen), or the name of the file
is not indicated. An attempt to click on the message, to see
the place where the warning occurs, does not work. What can be
the reson for these messages, and how to eliminate the problem?

5) I wonder if anybody has experiences with creating DLLs that
cooperate with MS C++ Visual Studio - produced GUIs?
This is something that I need to do, because I need long double
variables offered by MInGW and DevCPP, but Visual Studio should
be better for making a GUI, although it does not provide
support for long doubles. Will such a combination work?

Leslaw