floatToStr

[Dumken]

Pls can someone explain this code 4 Me. Starting from d conversion.

 

[misterT]

what is "d conversion"?

I don't have much time to write, but there should be a documentation somewhere that explain what each function does.

Or, do you want to know what the "Remove leading blanks" does (or how it does it)?

 

[ericgibbs]

hi T,
Its text speak for 'the' aka 'd'
E

 

[misterT]

hi T,
Its text speak for 'the' aka 'd'
E

Thanks.. english is a second language to me. I am not from d hoods.

mV = (Vin * 5000) >> 10;

That line of code multiplies the adc reading by 5000 and then divides it by 2^10. The result is the adc reading in millivolts. (more or less accurate. Not perfect conversion, but good enough for many)..

EDIT: Sorry.. I think I might have explained the wrong conversion .. sorry for that. I'm in a hurry.

 

[Dumken]

MisterT yea I mean Removing leading blanks. Thank u.

 

[misterT]

MisterT yea I mean Removing leading blanks. Thank u.

The for loop goes through the array of letters and copies all letters from the array "op[]" to "lcd[]", except blanks (space-character).

You see the if-statement:

if (op[i] != ' ')
{
    // Copy everything that is not the ' ' character (space-character)
    lcd[j] = op[i];
}

That if-statement compares against the space-character.

If you want to remove all a-characters, then the statement would be:

if (op[i] != 'a')
{
    // Copy everything that is not the 'a' character
    lcd[j] = op[i];
}

Do you see the idea?

 

[Dumken]

Thank u mister buh I still don't understand what generated the space n why it was looping from 0 to 11.

 

[Ian Rogers]

Thank u mister buh I still don't understand what generated the space n why it was looping from 0 to 11.

The answer lies in the LongToStr() function... The author must have made it a right justify so the string could be terminated in the same spot!..

 

[misterT]

Thank u mister buh I still don't understand what generated the space n why it was looping from 0 to 11.

I don't know what generated the spaces.. well, it is the "LongToStr" function, but I do not know why it generates leading spaces. That is a strange design.

The code probably loops from 0 to 11 because the char array "op[]" is 11 characters long. The code does not show how that variable is defined.

Edit: Ian explained why the function outputs the string "right justified". The code is out of context so it is impossible to explain it with more detail than that.

 

[Ian Rogers]

A long... 4,294,967,296 or +/- 2,147,483,648 A maximum of 11 chars..

 

[Dumken]

Thanks guys.