XCode, cin and string (C++) => troubles :s
XCode, cin and string (C++) => troubles :s
- Subject: XCode, cin and string (C++) => troubles :s
- From: Arnaud Schoofs <email@hidden>
- Date: Sun, 14 Feb 2010 12:38:51 +0100
Hi everyone,
I'm trying to use XCode (in place of Eclipse) for developping a basic
C++ app but i've got some troubles :/
- Under Eclipse (on linux) : no problem : compilation OK, execution OK
- Under OS X with a makefile : no problem : compilation OK, execution OK
- Under OS X withe XCode : compilation OK, execution : KO !!
There is an error when executing the part of the code using string. En
error like this one :
helloworld(2945) malloc: *** error for object 0x40e4: pointer being
freed was not allocated
*** set a breakpoint in malloc_error_break to debug
(but the program continue to run)
(NB : the part of the app using char* works well)
So I guess i've got a problem of configuration/tuning in XCode but i don't know what :s
To help me answer this question i've prepared a .zip containing :
- the makefile i'm using (the app produced with it is fully working on os x)
- source code (main.cpp)
- the app compiled with the makefile (main.o and helloworld_makefile)
- the XCode project (helloworld.xcodeproj)
- the app compiled with XCode (buil/Debug/helloworld)
Here is the .zip : http://lepommier.boinc-af.org/public/helloworld.zip
I'm using Mac OS X Snow Leopard on a Macbook Core Duo (i.e. 32bits) and XCode 3.2.1
Thanks for your help.
(Sorry for the gram/orth mistakes, i'm not a native speaker)
------------------------------------------------
For those of you who don't trust the zip :
soure code :
#include <iostream>
using namespace std;
int main (int argc, char * const argv[]) {
string s;
cout << "Type something (using string) : ";
cin >> s;
cout << s << "\n\n";
char* c;
cout << "Type something (using char*) : ";
cin >> c;
cout << c << "\n\n";
return 0;
}
makefile:
CPP=g++
CXXFLAGS=-Wall -ansi -pedantic
LDFLAGS=
EXEC=helloworld_makefile
SRC= $(wildcard *.cpp)
OBJ= $(SRC:.cpp=.o)
all: $(EXEC)
helloworld_makefile: $(OBJ)
$(CPP) -o $@ $^ $(LDFLAGS)
%.o: %.cpp
$(CPP) -o $@ -c $< $(CFLAGS)
.PHONY: clean mrproper
clean:
rm -rf $(DIRSRC)*.o
mrproper: clean
rm -rf $(EXEC)
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