Check if float value is integer

I think you're asking how to find out if a number stored as a float is an integer. There are a number of techniques. Here's one:

if(fVal == floorf(fVal))
    ... // do something

Use the floating point remainder function:

if (fmod(fVal, 1.0) == 0.0)
   // is integer

BOOL isInteger = !fmod(fVal, 1.0);

I believe it's the simplest way to check it:

if( fnum == (int)fnum ) {
    //fnum has integer value without decimals
}

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