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

OROSZI Balázs wrote:

> Is there a way of getting formatted data from a C++ string, apart from 
> sscanf()?
> In particular, I would like to get integers from a string.
> And since we are here, I would also like to know, whether there is a 
> function to get words from a string (like the << operator for streams)?


What about stringstreams?


Daniel K. O.

Hi!

Is there a way of getting formatted data from a C++ string, apart from=20
sscanf()?
In particular, I would like to get integers from a string.
And since we are here, I would also like to know, whether there is a=20
function to get words from a string (like the << operator for streams)?

Thanks in advance.

--
Greetings,
   Bal=E1zs

Is it possible to use the Dev-Cpp IDE with other langues based on gcc such as ADA, FORTRAN, and ObjectiveC?







_______________________________________________

MessageReid,

Thanks, it now works.

Everyone else - Please do not respond as I no longer need any help on =
this issue.

Stephen Bauer
  ----- Original Message -----=20
  From: Reid Thompson=20
  To: Stephen Bauer=20
  Sent: Friday, April 02, 2004 1:05 PM
  Subject: RE: [Dev-C++] Can not view C++ compiled output


  it's in stdlib.h


  reid=20

    -----Original Message-----
    From: Stephen Bauer [mailto:sjb...@co...]=20
    Sent: Friday, April 02, 2004 1:15 PM
    To: dev...@li...
    Cc: Stephen J Bauer
    Subject: Re: [Dev-C++] Can not view C++ compiled output


    All,

    Thanks for your suggestions to add=20

    system("PAUSE");

    before the return.  I tried it and all I got for my trouble was -
    6 c:\docume~1\steve\mydocu~1\myeboo~1\newcur~1.cpp
     implicit declaration of function `int system(...)'

    which is why the book instructions probably told me to delete this =
line.

    There must be some other trick to it or something. I am running =
software on Microsoft Windows XP.

    Stephen Bauer

All,

Thanks for your suggestions to add=20

system("PAUSE");

before the return.  I tried it and all I got for my trouble was -
6 c:\docume~1\steve\mydocu~1\myeboo~1\newcur~1.cpp
 implicit declaration of function `int system(...)'

which is why the book instructions probably told me to delete this line.

There must be some other trick to it or something. I am running software =
on Microsoft Windows XP.

Stephen Bauer

Another ex (from Lippman, I hope he doesn't be offended, I have just =
bought his book, I think it's good... )

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

int main()
{
// open a file for output
ofstream outfile("out_file");

// same for input
ifstream infile("in_file");

if(!infile){
    cerr << "error... "<<endl;
    return -1;
    }

if(!outfile){
    cerr << "error...."<<endl;
    return -2;
    }   =20
   =20
string word;
while(infile>>word)
outfile << word << ' ';

return 0;

}
  ----- Original Message -----=20
  From: Chello=20
  To: dev...@li...=20
  Sent: Thursday, April 01, 2004 7:56 PM
  Subject: [Dev-C++] just help


  how to use string with dev c++ i tried everything by

Wednesday, March 31, 2004, 8:00:44 AM, you wrote:
JJAl> I fixed the problem, this is what the Makefile.win looks now:
// skiped
Look at this makefile.win for simple gtk "hello-world" application
--------------------------------------------------------------------------

CPP  = g++.exe
CC   = gcc.exe
WINDRES = windres.exe
RES  = 
OBJ  = main.o $(RES)
LINKOBJ  = main.o $(RES)
LIBS =  -L"D:/Dev-Cpp/lib" -Ld:/dev-cpp/lib -lgtk-win32-2.0 -lgdk-win32-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lpangowin32-1.0 -lgdi32 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -lintl -liconv  
INCS =  -I"D:/Dev-Cpp/include" 
CXXINCS =  -I"D:/Dev-Cpp/include/c++"  -I"D:/Dev-Cpp/include/c++/mingw32"  -I"D:/Dev-Cpp/include/c++/backward"  -I"D:/Dev-Cpp/include" 
BIN  = try.exe
CXXFLAGS = $(CXXINCS) 
CFLAGS = $(INCS)-Id:/dev-cpp/include/gtk-2.0 -Id:/dev-cpp/lib/gtk-2.0/include -Id:/dev-cpp/include/atk-1.0 -Id:/dev-cpp/include/pango-1.0 -Id:/dev-cpp/include/glib-2.0 -Id:/dev-cpp/lib/glib-2.0/include  -mms-bitfields  
.PHONY: all all-before all-after clean clean-custom
all: all-before try.exe all-after
clean: clean-custom
        rm -f $(OBJ) $(BIN)
$(BIN): $(OBJ)
        $(CC) $(LINKOBJ) -o "try.exe"  $(LIBS)
main.o: main.c
        $(CC) -c main.c -o main.o $(CFLAGS)

--------------------------------------------------------------------------
Note, that there must be  -mms-bitfields option.  You can add it
manually to project options - parameters - compiler.

You can create Dev-cpp template with all needed options. Note that it
must be C project. In your makefile:
-------------------------------------------
$(BIN): $(OBJ)
        $(CPP) $(LINKOBJ) -o "Gtk_Test.exe" $(LIBS)
-------------------------------------------
you are using C++ compiler - $(CPP).

JJAl> The problems is that none of the C++ toolkits
JJAl> have a books so to learn GUI programming. I, being a complete
JJAl> ignorant when it comes to GUI programming, don't have any other
JJAl> choice but to learn C GUI development with GTK+.
Look at gtkmm (www.gtkmm.org), it's a thin wrapper for Gtk+. It has
tutorial in installation pakage and many examples.
gtkmm is much more easy than Gtk+.
-- 
Best regards,
 Denis                          

> how to use string with dev c++ i tried everything by

It might be useful to specify your question.
Generally there is no difference, using strings with Dev C++ or with an
other IDE:

#include<iostream>    // for cout ( and others )
#include<cstring>    // for string

...
string xy;    // defined
xy = "something";    // assign a content (and allocate the necessay memory)
xy..append("\nsomething else in a new line");    // appending this to the
existing content (and expand the necessay memory)
cout<<"Content of xy: " << xy << endl;    // Showing the content
...

Have a look to C++ string-"management", eg. at
http://www.cppreference.com/cppstring.html


Regards
Achim