C / C++ / MFC

23-Feb-21 6:35

i wanna ask, can anyone suggest any good tutorials references for learning C from the beginning, especially for the latest C version (C17, afaik) ?

refs can be web, e-books, or anything

note:
i tried google. found no tutorials for this.

CPallini23-Feb-21 20:27

CPallini

23-Feb-21 20:27

C is a rather stable language, every standard doesn't add so many features like happens, for instance, with C++, so you may find (of the tons available) a good tutorial on a previous version (e.g. C99 or C11) and start learning. Then, in order to complete your knowledge, you may access the freely available 'final draft of the standard' (external link in the very wikipedia page: C17 (C standard revision) - Wikipedia[^].

"In testa che avete, Signor di Ceprano?"
-- Rigoletto

chipp_zanuff25-Feb-21 6:45

25-Feb-21 6:45

but there's errors in old syntax if we use old tutorials

coz, there's tutorials using old syntax of C and that's not used in today's C's syntax anymore

e.g.: i have K&R book and their example is like:

C++

#include <stdio.h>

main () { //this syntax is not allowed anymore, afaik... it should be int main() instead
//...
}

that's why i'm looking more for tutor that suit with the latest C's syntax, which is C17

CPallini25-Feb-21 20:07

CPallini

25-Feb-21 20:07

I didn't say it has not changed. It changed, but just a little. You haven't to go back to K&R. While probably there aren't yet many tutorials on the latest standard, there are many many available good ones for recent versions of it. That could be your fishing pond.

"In testa che avete, Signor di Ceprano?"
-- Rigoletto

chipp_zanuff26-Feb-21 5:59

26-Feb-21 5:59

ok, i guess i'll go for tutorials around 2015 and above

do you have any suggestions on this?

Richard MacCutchan23-Feb-21 21:58

Richard MacCutchan

23-Feb-21 21:58

chipp_zanuff wrote:
i tried google. found no tutorials for this.

What search terms did you use? c language tutorial - Google Search[^]

chipp_zanuff25-Feb-21 6:43

25-Feb-21 6:43

i searched more for C17 and not just C tutorials

coz, there's tutorials using old syntax of C and that's not used in today's C's syntax anymore

e.g.: i have K&R book and their example is like:

C++

#include <stdio.h>

main () { //this syntax is not allowed anymore, afaik... it should be int main() instead
//...
}

i'm looking more for tutor that suit with the latest C's syntax, which is C17

Victor Nijegorodov25-Feb-21 7:47

25-Feb-21 7:47

chipp_zanuff wrote:

i have K&R book and their example is like:

C++

#include <span class="code-keyword"><stdio.h>
</span>
main () { //this syntax is not allowed anymore, afaik... it should be int main() instead
//...
}

FYI: int main() vs void main() vs int main(void) in C & C++

Richard MacCutchan25-Feb-21 23:12

Richard MacCutchan

25-Feb-21 23:12

Very little has changed in C for years. See C (programming language) - Wikipedia[^].

chipp_zanuff26-Feb-21 6:36

26-Feb-21 6:36

ok, you have any suggested references for C tutorials? e-books, web, or anything...

Richard MacCutchan26-Feb-21 6:43

Richard MacCutchan

26-Feb-21 6:43

Why do you need a tutorial? Read the latest K & R.

Aghast (nj)9-Mar-21 19:27

Aghast (nj)

9-Mar-21 19:27

Try this video series: https://youtu.be/F3ntGDm6hOs

This is a "pre-introduction" series of 5 videos, to the Handmade Hero video series. HH is an ongoing series and may/may not be valuable to you, but the prelim is a good, fast intro that explains a bunch of concepts on Windows.

Nelek9-Mar-21 19:29

Nelek

9-Mar-21 19:29

You got caught by the spam filter that put your message in moderation. Next time be a bit patient please instead of posting again.

I have let both messages through and deleted the other one.

M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.

chipp_zanuff13-Mar-21 0:54

GetComputerObjectNameW Win API is failing

13-Mar-21 0:54

ic... maybe i was thought it got an error while posting...

rajneshmalik18-Feb-21 18:42

18-Feb-21 18:42

I was trying to use win API

GetComputerObjectNameW

as below but I am getting error. Can someone help me.

C++

#include <iostream>
#include <atlbase.h>
#include <secext.h>
typedef enum  {
  NameUnknown,
  NameFullyQualifiedDN,
  NameSamCompatible,
  NameDisplay,
  NameUniqueId,
  NameCanonical,
  NameUserPrincipal,
  NameCanonicalEx,
  NameServicePrincipal,
  NameDnsDomain,
  NameGivenName,
  NameSurname
} EXTENDED_NAME_FORMAT, *PEXTENDED_NAME_FORMAT;

int main()
{
        EXTENDED_NAME_FORMAT enf = NameFullyQualifiedDN;
        LPWSTR pwszComputerName;
        DWORD dwLen;
        
        dwLen = 0;
        GetComputerObjectNameW(enf, NULL, &dwLen);
    
        pwszComputerName = new WCHAR[dwLen + 1];
        if(NULL == pwszComputerName)
        {
            return 0;
        }
        if(!GetComputerObjectNameW(NameSamCompatible, pwszComputerName, &dwLen))
        {
            delete pwszComputerName;
            return 0;
        }

        sbstrTrustee = pwszComputerName;
        wprintf(L"GetComputerObjectName: %s\n", pwszComputerName);
        delete pwszComputerName;
}

Some of Error message is as below.

C:\Program Files (x86)\Windows Kits\8.1\include\\shared\secext.h(117): error C2146: syntax error: missing ';' before identifier 'GetUserNameExA'
C:\Program Files (x86)\Windows Kits\8.1\include\\shared\secext.h(121): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
C:\Program Files (x86)\Windows Kits\8.1\include\\shared\secext.h(126): error C2086: 'BOOLEAN SEC_ENTRY': redefinition
C:\Program Files (x86)\Windows Kits\8.1\include\\shared\secext.h(117): note: see declaration of 'SEC_ENTRY'
C:\Program Files (x86)\Windows Kits\8.1\include\\shared\secext.h(126): error C2146: syntax error: missing ';' before identifier 'GetUserNameExW'
C:\Program Files (x86)\Windows Kits\8.1\include\\shared\secext.h(130): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int

Victor Nijegorodov18-Feb-21 20:46

18-Feb-21 20:46

Why do you redefine the EXTENDED_NAME_FORMAT enumeration? Confused | :confused:

rajneshmalik18-Feb-21 21:47

18-Feb-21 21:47

I first try without defining enum after that try with enum. In both case I am getting compilation error.

Victor Nijegorodov18-Feb-21 22:45

18-Feb-21 22:45

Add these definition:
#define _WIN32_WINNT 0x0500
#define SECURITY_WIN32

Remove the redefinition of enum.
Define the sbstrTrustee variable.

// edited: also don't forget to include the Secur32.lib library.

rajneshmalik19-Feb-21 1:01

19-Feb-21 1:01

Hi Victor,
I have modified program according to your suggestion but I am not getting expected result. I want to use NameFullyQualifiedDN enum value and get the fully qualified distinguished name (for example, CN=Jeff Smith,OU=Users,DC=Engineering,DC=Microsoft,DC=Com).

Regards,
Rajnesh

Victor Nijegorodov19-Feb-21 3:33

19-Feb-21 3:33

Sorry, I don't know what is wrong/correct in your test.
I've just tested your code and got the result in the form:
[my_domain_name].[my_computer_name]$
wich is in my case 100% correct.

rajneshmalik25-Mar-21 23:27

25-Mar-21 23:27

Hi Victor,

There was configuration issue with my windows laptop, so I was facing issue. Thanks for your feedback.