topic sscanf problem when giving a string containg % as the first parameter. in MQX Software Solutions

sscanf problem when giving a string containg % as the first parameter.

JaimeR — Tue, 27 Oct 2009 02:49:22 GMT

I need to perform the following instructions into MQX. I need to get the four ip numbers into four integers(a,b,c,d).

Problem is I am receiving %2E as the "." and the "%" symbol is giving me a lot of trouble. I have tested those lines into a C compiler for PC applications and it works fine but it fails in MQX.

char ip[] = "192%2E168%2E0%2E120";

sscanf(ip, "%d%%%*[2E]%d%%%*[2E]%d%%%*[2E]%d" , &a, &b, &c, &d);

* Function Name    : _io_sscanf
* Returned Value   : _mqx_int
* Comments         :
*   This function performs similarly to the 'C' sscanf function.
*   See scanline.c for comments.
*   The function returns the number of input items converted and assigned}

Where do I find scanline.c file in order to see the comments?

I need to see what does the sscanf function can do in order to get this working.

Let me know if someone knows a way around this.

Thanks in advanced.

Re: sscanf problem when giving a string containg % as the first parameter.

PetrM — Thu, 29 Oct 2009 20:37:41 GMT

You can find the right file here:

mqx/source/fio/io_scanl.c

Sorry for bad comment.

PetrM

Re: sscanf problem when giving a string containg % as the first parameter.

JaimeR — Thu, 29 Oct 2009 20:54:13 GMT

Do you know how can I catch a "%" symbol?

Re: sscanf problem when giving a string containg % as the first parameter.

PetrM — Thu, 29 Oct 2009 23:10:00 GMT

Sorry to say that, but there seems to be no support for '%' escaping.

Please consider input preprocessing (replace %2E with something sscanf knows).