vdExp 32 bit vs 64 bit different results

Hi,

I'm new to MKL so please bare with me. We're moving a project from 32 to 64 bit and we've encountered some inconsistencies between 32 & 64 bit vdExp.

I have the following code

double value = 0.027771918023383080;

double result;

vdExp( 1, &value, &result );

In 32 bit mode, the value in result is 1.0281611526482297 whilst when I run it in 64 bit mode I get 1.0281611526482299.

Any ideas why this is? I've double checked and I'm definitely compiling with the correct libraries. I used the Intel MKL link advisor.

Regards

Mark.