ERROR 'strcpy' : cannot convert parameter 1 from 'TCHAR [20]' to 'char *'

Purish Dwivedi

I have read that article. But not getting any help regarding this problem. Can u please tell me the solution? Thanks.

Cedric Moonen

This article[^] is probably better to understand what's going on. After that, take a look at the documentation of sctrpy to check which is the unicode independant version of the function.

Cédric Moonen Software developer
Charting control [v2.0] OpenGL game tutorial in C++

ThatsAlok

Purish Dwivedi wrote:

I am getting an error like 'strcpy' : cannot convert parameter 1 from 'TCHAR [20]' to 'char *'

use _tcscpy instead

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Purish Dwivedi

If it is 'strlen' : cannot convert parameter 1 from 'TCHAR [20]' to 'const char *' then what to do?

_AnsHUMAN_

Do you need _tcslen?

You need to google first, if you have "It's urgent please" mentioned in your question. ;-)_AnShUmAn_

PCuong1983

try _tcscpy_s function instead strcpy function take a look in strpy definition strcpy work only ASCII , but TCHAR is char if Unicode is not defined or TCHAR is wchar_t if Unicode is defined

Rajesh R Subramanian

There is a boatload of CRT string manipulation functions. You can be kind enough not to add a query here for every single function that is referred to in your code. Just get to the documentation page[^] and click on the function that you're using. Then, choose the generic text mapping routine version (tchar.h routine) of that function. As an example, choose _tcsdec instead of _strdec. You might want to read about Using Generic Text-Mappings[^].

It is a crappy thing, but it's life -^ Carlo Pallini

Purish Dwivedi

Code Segment is token=strtok(userid,_T(";")); What about this error? 'strtok' : cannot convert parameter 2 from 'const wchar_t [2]' to 'const char *'

Purish Dwivedi

Code Segment is token=strtok(userid,_T(";")); What about this error? 'strtok' : cannot convert parameter 2 from 'const wchar_t [2]' to 'const char *'

Rajesh R Subramanian

Is it really that difficult? Read my previous reply to you again. Go to the documentation page and click on strtok and choose the generic text mapping routine equivalent instead. You need to read on Unicode, Generic Text mappings, Internationalization, and string manipulation. You really need to.

It is a crappy thing, but it's life -^ Carlo Pallini

Purish Dwivedi

I have changed that. Now the new error is 'wcstok' : cannot convert parameter 1 from 'char [1000]' to 'wchar_t *' what should I do now?

Rajesh R Subramanian

Purish Dwivedi wrote:

what should I do now?

You are looking for someone to give you an 'instant fix' (not to mention you post a query for every error of the same type) without even understanding your problem properly, which is essentially not going to help you in the longer run. I am wanting you to understand the basics so that you will be able to solve the problem yourself. Therefore, do what Cédric asked you to do[^]

It is a crappy thing, but it's life -^ Carlo Pallini

Purish Dwivedi

I'm not getting that what to do? Plz help me. thanks.

Cedric Moonen

Purish Dwivedi wrote:

I'm not getting that what to do?

Look, people here are willing to help but if you don't want to put any effort yourself, then you can forget about it. The article I linked to you contains a lot of information about unicode and non-unicode builds. Once you have read the article, you will understand that to support both unicode and non-unicode builds, you will need to use TCHAR (and not char) and all the unicode-independant string manipulation routines (instead of strcpy, strlen, strtok, ...). For ALL of those functions, if you look in the MSDN documentation, you have a table that compares the different versions. You always have to use the "TCHAR.h routine" version.

Cédric Moonen Software developer
Charting control [v2.0] OpenGL game tutorial in C++

Rajesh R Subramanian

Cedric Moonen wrote:

unicode-independant string manipulation routines

Would that be rather character set independent string manipulation routines? OK, I'm just being a nitpick. :-D

It is a crappy thing, but it's life -^ Carlo Pallini

Cedric Moonen

Rajesh R Subramanian wrote:

Would that be rather character set independent string manipulation routines?

To be honnest, I didn't know the exact terminology. Now I know :)

Cédric Moonen Software developer
Charting control [v2.0] OpenGL game tutorial in C++

CPallini

It looks like you're doing a UNICODE build, but, neverthless, userid is declared as char * (or char userid[]) insetad of TCHAR * and, moreover, you're not using the generic text equivalent of strtok (i.e. _tcstok). :)

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softwaremonkey

As someone else mentioned, it looks like you have some mixed UNICODE and ANSI problems. Ti make the code portable, make sure you have included "TCHAR.H" and use _tcslen instead of strlen. That should fix the problem. Tony