Recent posts

#41

Beginner questions / Re: Unresolved External Symbol

Last post by StevenCooper - July 19, 2026, 07:01:17 PM

I have found a simple solution to the current problem and the problem of Version 10 not working in Windows 11.

I uninstalled version 14.5, and installed version 11. Years ago, I had downloaded the setup.exe for version 11 and never installed it (ditto for version 12); I was perfectly happy with version 10.

#42

Beginner questions / Re: Unresolved External Symbol

Last post by StevenCooper - July 19, 2026, 06:35:43 PM

One of the first things I did was search my code for a reference to 'stod'; there are none. Next, I checked the help files for information about it...there is none.

You mentioned a macro reference to the atof() function; I looked it up in the help files to see what include file is required: "stdlib.h". It's always been included in the original code from the begining.

What has changed from version 10 to version 14 that this error is now occuring?

And how do I fix it?

#43

Beginner questions / Re: Just installed Pelles C an...

Last post by Vortex - July 19, 2026, 11:15:31 AM

Hi Pablo,

Did you remove the previous version of Pelles C? Any remnants from the old installation?

#44

Projects developed with Pelles C / Re: Simple Calendar

Last post by Marco - July 19, 2026, 10:22:53 AM

Hi John,

Right click in any open area of the controls line to set the Alert time to the current system time.

Thank you for taking the time to implement this feature.

I hope you don't mind that I acknowledge your assistance in the help file.

No problem at all! In fact, thank you. I do the same when a user reports a bug to me regarding WinContig.

Marco

#45

Beginner questions / Re: Just installed Pelles C an...

Last post by TimoVJL - July 19, 2026, 08:45:32 AM

Try it once with Admin account, if it check file like sysdefs.tag

An old Depends.exe might show if it fails with files.

#46

Beginner questions / Re: Unresolved External Symbol

Last post by TimoVJL - July 19, 2026, 08:36:12 AM

Just search it from a your code.
A macro atof use it in version 10.

Code Select Expand

/* internal stuff */
...
/* macro overrides */
#define atof(s)  __stod(s,0,0)


Code Select Expand

[155]extern _CRTIMP double __cdecl __stod(const char *, char **, long);
[172]#define atof(s)  __stod(s,0,0)
[177]#define strtod(s,endptr)  __stod(s,endptr,0)

#47

Beginner questions / Unresolved External Symbol

Last post by StevenCooper - July 19, 2026, 08:15:51 AM

I recently moved from a Windows 10 computer to a Windows 11 computer; I had previously been using Version 10 of Pelles C, but it wouldn't work in Windows 11, so I "jumped" all the way up to Pelles C Version 14.5.

Two programs I "test" compiled under version 14.5 compiled and linked just fine, no problems.

But a third program, that compiled just fine under version 10, is now getting the following error message under Version 14.5:

POLINK: error: Unresolved external symbol '__stod' - referenced from 'C:\Users\steco\Documents\Pelles C Projects\LotteryScratchOffs\output\LotteryScratchOffs.obj'.

I have searched this forum for information about this, but found only one refernce to it from 12 years ago.

I have also search the Internet and can find no information about this '__stod' symbol.

Can somebody help me, please?

#48

Beginner questions / Re: Just installed Pelles C an...

Last post by PabloMack - July 19, 2026, 05:17:02 AM

I am running Windows 10. I installed PellesC in an Admin account for everyone but I am trying to use it under a non-privilege account.

[C:\Program Files\PellesC\Files\BBBBuilder_PS - Copy (2)]

#49

Beginner questions / Re: Just installed Pelles C an...

Last post by John Z - July 19, 2026, 02:16:47 AM

Sage advice IF one uses various Pelles C tools outside of the IDE.

However if staying within the IDE I've never had an issue with installing Pelles C into directories with spaces, all the way back to at least Windows ME  .

My current install path C:\Program Files\PellesC_14_5\
My current source code path C:\Program Files\PellesC\Files\
even a path like C:\Program Files\PellesC\Files\BBBBuilder_PS - Copy (2) works without any problems.

I've never had Windows Defender flag Pelles C neither has my GData antivirus program. Although we've heard many stories about the 'free' antivirus programs flagging Pelles as well as programs built by Pelles C.


So just another viewpoint -

There is not enough information to be able to help Pablo until he posts more IMO.

John Z

#50

Beginner questions / Re: Just installed Pelles C an...

Last post by MrBcx - July 18, 2026, 04:13:31 PM

Hi Pablo,

For 20+ years, I've kept C:\Pellesc\ in the root of my drive and I tell
Windows to exclude that folder from Windows Defender wanting to scan it.

I never have problems using Pelles C with that arrangement.

The main thing is: DO NOT use spaces in your folder name.