Personal computing discussed
Moderators: renee, SecretSquirrel, just brew it!
MMTK is developed in and around Python, a high-level object-oriented general-purpose programming language. In fact, MMTK consists of nothing more than a collection of Python modules, most of which written in Python itself, with only a small time-critical part (e.g. energy evaluation) written in C. MMTK applications are Python programs that make use of these modules. Python was chosen because it allows rapid code development and testing, while providing a very convenient C interface for dealing with time-critical calculations.
sativa wrote:or pick up your TI calculator manual and start programming on that thing. it will teach you the basics.
just brew it! wrote:C++ is essentially a superset of C. If your goal is to write Windows applications in C/C++, then Visual C++ is the way to go. The Win32 API and MFC library are designed from the ground up to be used with C/C++.
BurntFingers wrote:Am I right in thinking that, firstly, although there are many languages the most popular are C and C++?
Secondly, C++ is based upon C but, the two are not compatible?
Thirdly, C and C++ can/are used to write code used in Win32 and MFC programming???
Visual C++ seems to able to handle the previously mentioned languages (and others), but is it any good?
sativa wrote:fc34 wrote:The TI calculator is simply a simplified BASIC
Which is exactly why I mentioned it. Also, nearly everyone in high school or college has one and they are quite portable.
IntelMole wrote:The first language I learnt was VBA. Now that was no fun.
Craig P. wrote:You might be surprised at just how much you can make VB/VBA do with a little knowledge of the Windows API. I usually work in regular VB, but since the core language is the same, I could do exactly the same things in Excel (or Word) if I needed to.
IntelMole wrote:Craig P. wrote:You might be surprised at just how much you can make VB/VBA do with a little knowledge of the Windows API. I usually work in regular VB, but since the core language is the same, I could do exactly the same things in Excel (or Word) if I needed to.
You certainly sound like you know what you're talking about. Unfortunatly, the stuff I was doing was strictly limited to databases and the like...
-Mole
IntelMole wrote:Craig P. wrote:You might be surprised at just how much you can make VB/VBA do with a little knowledge of the Windows API. I usually work in regular VB, but since the core language is the same, I could do exactly the same things in Excel (or Word) if I needed to.
You certainly sound like you know what you're talking about. Unfortunatly, the stuff I was doing was strictly limited to databases and the like...
-Mole
halfline wrote:I can't be sure, but I think VB and C++ are on the top of the list for most used programming lanugage.
Yes, C++ is based on C. I think all C code will work in a C++ compiler, but not the other way around.
Ah, MFC! A lot of Win32 apps use MFC (and a bunch of other languages) to make their applications. But as a warning, MFC is complex. For simple things, it's easy. For professional things, it's a nightmare, unless u really know ur stuff.
Visual Studio (or VC++) is an awsome product along with the .NET line.
harbichidian wrote:Of course, all true programmers know C++ is the only language worth knowing
But seriously, as I do everything in C++ and have completely abandoned Visual BASIC for its... simplicity... I may give a slightly biased opinion. BASIC (not visual) is a good stepping stone for the beginning programmer, but C++ is the pinnacle, the peak of all programming evolution. There is nothing you can't do in C++. Period.
... and C++ is the only language you can ascend into the Tao with.
harbichidian wrote:BASIC (not visual) is a good stepping stone for the beginning programmer, but C++ is the pinnacle, the peak of all programming evolution.
High School/Jr.High
10 PRINT "HELLO WORLD"
20 END
First year in College
program Hello(input, output)
begin
writeln('Hello World')
end.
Senior year in College
(defun hello
(print
(cons 'Hello (list 'World))))
New professional
#include
void main(void)
{
char *message[] = {"Hello ", "World"};
int i;
for(i = 0; i < 2; ++i)
printf("%s", message[i]);
printf("\n");
}
Seasoned professional
#include
#include
class string
{
private:
int size;
char *ptr;
public:
string() : size(0), ptr(new char('\0')) {}
string(const string &s) : size(s.size)
{
ptr = new char[size + 1];
strcpy(ptr, s.ptr);
}
~string()
{
delete [] ptr;
}
friend ostream &operator <<(ostream &,
const string &);
string &operator=(const char *);
};
ostream &operator<<(ostream &stream, const
string &s)
{
return(stream << s.ptr);
}
string &string::operator=(const char *chrs)
{
if (this != &chrs)
{
delete [] ptr;
size = strlen(chrs);
ptr = new char[size + 1];
strcpy(ptr, chrs);
}
return(*this);
}
int main()
{
string str;
str = "Hello World";
cout << str << endl;
return(0);
}
Master Programmer
[
uuid(2573F8F4-CFEE-101A-9A9F-00AA00342820)
]
library LHello
{
// bring in the master library
importlib("actimp.tlb");
importlib("actexp.tlb");
// bring in my interfaces
#include "pshlo.idl"
[
uuid(2573F8F5-CFEE-101A-9A9F-00AA00342820)
]
cotype THello
{
interface IHello;
interface IPersistFile;
};
};
[
exe,
uuid(2573F890-CFEE-101A-9A9F-00AA00342820)
]
module CHelloLib
{
// some code related header files
importheader();
importheader();
importheader();
importheader("pshlo.h");
importheader("shlo.hxx");
importheader("mycls.hxx");
// needed typelibs
importlib("actimp.tlb");
importlib("actexp.tlb");
importlib("thlo.tlb");
[
uuid(2573F891-CFEE-101A-9A9F-00AA00342820),
aggregatable
]
coclass CHello
{
cotype THello;
};
};
#include "ipfix.hxx"
extern HANDLE hEvent;
class CHello : public CHelloBase
{
public:
IPFIX(CLSID_CHello);
CHello(IUnknown *pUnk);
~CHello();
HRESULT __stdcall PrintSz(LPWSTR
pwszString);
private:
static int cObjRef;
};
#include
#include
#include
#include
#include "thlo.h"
#include "pshlo.h"
#include "shlo.hxx"
#include "mycls.hxx"
int CHello::cObjRef = 0;
CHello::CHello(IUnknown *pUnk) :
CHelloBase(pUnk)
{
cObjRef++;
return;
}
HRESULT __stdcall CHello::PrintSz(LPWSTR
pwszString)
{
printf("%ws\n", pwszString);
return(ResultFromScode(S_OK));
}
CHello::~CHello(void)
{
// when the object count goes to zero, stop
the server
cObjRef--;
if( cObjRef == 0 )
PulseEvent(hEvent);
return;
}
#include
#include
#include "pshlo.h"
#include "shlo.hxx"
#include "mycls.hxx"
HANDLE hEvent;
int _cdecl main(
int argc,
char * argv[]
) {
ULONG ulRef;
DWORD dwRegistration;
CHelloCF *pCF = new CHelloCF();
hEvent = CreateEvent(NULL, FALSE, FALSE,
NULL);
// Initialize the OLE libraries
CoInitializeEx(NULL, COINIT_MULTITHREADED);
CoRegisterClassObject(CLSID_CHello, pCF,
CLSCTX_LOCAL_SERVER,
REGCLS_MULTIPLEUSE, &dwRegistration);
// wait on an event to stop
WaitForSingleObject(hEvent, INFINITE);
// revoke and release the class object
CoRevokeClassObject(dwRegistration);
ulRef = pCF->Release();
// Tell OLE we are going away.
CoUninitialize();
return(0);
}
extern CLSID CLSID_CHello;
extern UUID LIBID_CHelloLib;
CLSID CLSID_CHello = { /*
2573F891-CFEE-101A-9A9F-00AA00342820 */
0x2573F891,
0xCFEE,
0x101A,
{ 0x9A, 0x9F, 0x00, 0xAA, 0x00, 0x34,
0x28, 0x20 }
};
UUID LIBID_CHelloLib = { /*
2573F890-CFEE-101A-9A9F-00AA00342820 */
0x2573F890,
0xCFEE,
0x101A,
{ 0x9A, 0x9F, 0x00, 0xAA, 0x00, 0x34,
0x28, 0x20 }
};
#include
#include
#include
#include
#include
#include "pshlo.h"
#include "shlo.hxx"
#include "clsid.h"
int _cdecl main(
int argc,
char * argv[]
) {
HRESULT hRslt;
IHello *pHello;
ULONG ulCnt;
IMoniker * pmk;
WCHAR wcsT[_MAX_PATH];
WCHAR wcsPath[2 * _MAX_PATH];
// get object path
wcsPath[0] = '\0';
wcsT[0] = '\0';
if( argc > 1) {
mbstowcs(wcsPath, argv[1],
strlen(argv[1]) + 1);
wcsupr(wcsPath);
}
else {
fprintf(stderr, "Object path must be
specified\n");
return(1);
}
// get print string
if(argc > 2)
mbstowcs(wcsT, argv[2], strlen(argv[2])
+ 1);
else
wcscpy(wcsT, L"Hello World");
printf("Linking to object %ws\n", wcsPath);
printf("Text String %ws\n", wcsT);
// Initialize the OLE libraries
hRslt = CoInitializeEx(NULL,
COINIT_MULTITHREADED);
if(SUCCEEDED(hRslt)) {
hRslt = CreateFileMoniker(wcsPath,
&pmk);
if(SUCCEEDED(hRslt))
hRslt = BindMoniker(pmk, 0, IID_IHello,
(void **)&pHello);
if(SUCCEEDED(hRslt)) {
// print a string out
pHello->PrintSz(wcsT);
Sleep(2000);
ulCnt = pHello->Release();
}
else
printf("Failure to connect, status: %lx",
hRslt);
// Tell OLE we are going away.
CoUninitialize();
}
return(0);
}
Apprentice Hacker
#!/usr/local/bin/perl
$msg="Hello, world.\n";
if ($#ARGV >= 0) {
while(defined($arg=shift(@ARGV))) {
$outfilename = $arg;
open(FILE, ">" . $outfilename) || die
"Can't write $arg: $!\n";
print (FILE $msg);
close(FILE) || die "Can't close $arg:
$!\n";
}
} else {
print ($msg);
}
1;
Experienced Hacker
#include
#define S "Hello, World\n"
main(){exit(printf(S) == strlen(S) ? 0 :
1);}
Seasoned Hacker
% cc -o a.out ~/src/misc/hw/hw.c
% a.out
Guru Hacker
% cat
Hello, world.
^D
New Manager
10 PRINT "HELLO WORLD"
20 END
Middle Manager
mail -s "Hello, world." bob@b12
Bob, could you please write me a program
that prints "Hello, world."?
I need it by tomorrow.
^D
Senior Manager
% zmail jim
I need a "Hello, world." program by this
afternoon.
Chief Executive
% letter
letter: Command not found.
% mail
To: ^X ^F ^C
% help mail
help: Command not found.
% damn!
!: Event unrecognized
% logout