extract binary value of mantissa : <p>I have a bit problem. 
Given: some real number(for example -474.875)
Task: extract BINARY value of mantissa
For number -474.875 I need this value 1,<strong><em>11011010111</em></strong> * 2^8
I have a programm:</p>

<pre><code>const float d = -474.875f;
int exponent;
const float mantissa = frexp(d, &amp;exponent);
double prev = mantissa * pow(2, exponent);
</code></pre>

<p>It calculates decimal mantissa (for my number it is -0.927490234) and exponent (9). I'm tried to convert this mantissa to binary... but failed... I got other value.
To get original value: mantissa* 2^exponent.
QUESTION: How I can get binary value of mantissa? May be it is possible to do it in more pretty way?</p>
