conversion from int32 to float32

[epitalon]

Hi all,

I use a PCH/PCW compiler V4.101 for a PIC 18F86J50.
I experience problems when converting some large integers to float.
The following simple test :

[Ttelmah]

The problem may be printf, not the conversion.
Print out the bytes held in the four bytes of the float, feed these into PConvert, and see what they actually represent.

There were some oddities with printf, when it was used without a 'size' around this compiler area. So you could also try limiting the size and see what happens. So %nf.

Have just had a play, and can confirm it is not the number itself, but the printf, that goes wrong. It works (and correctly expands as needed for the number), provided you don't use a size larger than '7'.

So if you use:

printf ("f_j: %7.0f\r\n", val);

It will work fine.

Best Wishes

[epitalon]

Hi Ttelmah,

I made the test. And you are right. It is only the printf that goes wrong.
Thanks for your help !