cast "signed int" to "float"? Doesn't wo

[valemike]

I tried the following:

Suppose i have the following float and signed int:
signed int x;
float y;
float z;

....

z = y + (float) x;

That's not going to give me desired values, right?

e.g.
y = 10.0
x = -4

z will not evaluate to something like 6.0 (or 5.99999), right?

[valemike]

I also found that:

unsigned int x;
float y;
float z;

If i then write the following:

z = y + (float) x;
It doesn't work right!

I have to break it up into two steps:
z = (float) x;
z = z + y;

Has anyone noticed that?

[SherpaDoug]

What answer does it give you?

Also what complier version are you using?

I am using 3.104 with 16C771 chips. I do lots of casting and it all works fine. But I don't use floats.
_________________
The search for better is endless. Instead simply find very good and get the job done.

[Ttelmah]

[valemike]

I wish I could pull this whole topic thread

I realized that i forgot to read the result from eeprom after a hard reset. False alarm! Sorry.

I couldn't verify the result myself because the unit i'm working uses rb6 and rb7, nor does it have a MAX232 with which to connect to Hyperterminal.

[Ttelmah]

[Mark]

Well if you are using MPLAB, there is a simulator in there that works just great for these tests. That is how I would have tested it.