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Sprintf and Float value booger....

 
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ljbeng



Joined: 10 Feb 2004
Posts: 205

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Sprintf and Float value booger....
PostPosted: Fri May 05, 2006 12:47 pm     Reply with quote
These are the only few lines (of significance) in my test program. I just wanted to test how I can get a float to copy to a string. This seems wrong to me.... V3.249. 18f2620.

Code:

char datstring[20];
float real;
.
.
.

while(1){
      real = 11110.333;
      sprintf(datstring,"%f",real);
}


datstring = "-1774.56846"

Code:

      real = 11110.333;
      sprintf(datstring,"%10.3f",real);


datstring = " 11110.333"

I am datalogging data from another source that comes to me from the serial port in ieee format. I use f_IEEEtoPIC to convert to PIC float format but I don't want to limit the log printout to a specified format (%10.3f) I just want the PIC to convert from ieee to float to string and print....whatever the value.
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Fri May 05, 2006 2:00 pm     Reply with quote
I was able to get it to work with the "%7.5" format string.
Just the simple "%f" hasn't worked properly for awhile.
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