The Evolution Of Programmer
Does anyone know if the “Master Programmer” code bellow actually works? Unfortunately my Windows programming is not very good as yet…
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
(cons 'Hello (list 'World))))
New professional
#include <stdio.h>
void main(void) {
char *message[] = {"Hello ", "World"};
int i;
for(i = 0; i < 2; ++i)
printf("%s", message[i]);
printf("n");
}
Seasoned professional
#include <iostream.h>
#include <string.h>
class string {
private:
int size;
char *ptr;
public:
string() : size(0), ptr(new char[1]) { ptr[0] = 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 (ptr != &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 << flush;
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(&windows.h&);
importheader(&ole2.h&);
importheader(&except.hxx&);
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 <windows.h>
#include <ole2.h>
#include <stdio.h>
#include <stdlib.h>
#include "thlo.h"
#include "pshlo.h"
#include "shlo.hxx"
#include "mycls.hxx"
int CHellocObjRef = 0;
CHelloCHello(IUnknown *pUnk) CHelloBase(pUnk) {
cObjRef++;
return;
}
HRESULT __stdcall CHelloPrintSz(LPWSTR pwszString) {
printf("%wsn", 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 <windows.h>
#include <ole2.h>
#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 <windows.h>
#include <ole2.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#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] = '';
wcsT[0] = '';
if( argc[1]) {
mbstowcs(wcsPath, argv[1], strlen(argv[1]) + 1);
wcsupr(wcsPath);
} else {
fprintf(stderr, "Object path must be specifiedn");
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 %wsn", wcsPath);
printf("Text String %wsn", 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 <stdio.h>
#define S "Hello, Worldn"
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 unrecognised
June 4, 2007