Table of Contents
typedef static templates RTTI CPlusPlus.fr
C++ is a Programming language so called Object Oriented (OOP), sometimes refered as hybrid one
TODO
Learn
irc://irc.freenode.net/c++
keywords
REFERENCE
C++ [[Book]]s :
- * BS's The C++ programming language TCPPPL : http://rzr.online.fr/isbn/0201889544 isbn:0201889544
ebooks
http://mindview.net/Books/TICPP/ThinkingInCPP2e.html http://web.fromehtozed.ca/ThinkingInCPP/vol2/html/TicV2.html
CODES
* http://cpp.sourceforge.net/?style=dark
Need samples on RTTI, STL, friendship, explicit , mutable etc
LIBS
MISC
SAMPLE CODE
// file://~/hello.cpp #include <iostream> #include <string> using namespace std;
class Cls {
public:
void f(string arg="http://rzr.online.fr") { cout<<arg<<endl; }
};
// file://~/main.cpp
int main(int argc, char* argv[[]]) { Cls o; o.f(); }
Then compile :
make hello && ./hello g++ hello.cpp -o hello http://rzr.online.fr
[[CPlusPlus]] : const keyword
int const value = 42; // is equivalent (and prefered) to const int value = 42;
think as const is a type modifyer
for a method that wont change the object :
class Foo { public void bar() const; };
Similar to final in Java
POINTERS & REFERENCES
/**
* Vieille methode C : passage par addresse
**/
int decompose(int nb,int* u,int* c,int* d) {
int tu,tc,td; // variables temporaires pour un soucie de lisibilitee
tc=nb/100; td=(nb/10-tc*10); tu=(nb-tc*100-td*10);
- u = tu;
- c = tc;
- d = td;
}
/**
* Local les valeurs retournees sont = a celle envoyées
* donc inutile pour les fonctions , soit procedure
**/
int decompose2(int nb,int u,int c,int d) {
int tu,tc,td; // variables temporaires pour un soucie de lisibilitee
tc=nb/100; td=(nb/10-tc*10); tu=(nb-tc*100-td*10);
u = tu; c = tc; d = td; }
/**
* Bonne Methode C++
* la reference est l'equivalent du pointeur en C
**/
int decompose3( const int nb,int &u,int &c,int &d) {
int tu,tc,td; // variables temporaires pour un soucie de lisibilitee
tc=nb/100; td=(nb/10-tc*10); tu=(nb-tc*100-td*10);
u = tu; c = tc; d = td; }
int main() {
int u=0,c=0,d=0;
int n=423;
decompose(n,&u,&c,&d);
cout<,<"n="<,<n<,<endl;
cout<,<"dn = "<,<c<,<" "<,<d<,<" "<,<u<,<endl; // dn = 4 2 3
u=0,c=0,d=0;
decompose2(n,u,c,d);
cout<,<"dn = "<,<c<,<" "<,<d<,<" "<,<u<,<endl; // dn = 0 0 0
u=0,c=0,d=0;
decompose3(n,u,c,d);
cout<,<"dn = "<,<c<,<" "<,<d<,<" "<,<u<,<endl; // dn = 4 2 3
return 0; }
pointer bug
mywstring toStdWString() const; const wchar_t * ptr = myQString.toStdWString().c_str(); Ooooo le zoli dangling pointer !
Allocator
http://www.informit.com/guides/content.asp?g=cplusplus&seqNum=40&rl=1
#include <new> // for size_t
class A {
public:
A();
~A();
static void* operator new (size_t size);
static void operator delete (void *p);
};
DESTRUCTOR
LIBS
- Maths : TNT, newmat http://www.robertnz.net/nm_intro.htm
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