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random0 12-14-2010 10:44 AM

C double to unsigned long long Conversion with mingw32
 
The following line is not working for me under mingw32.

Code:

printf("%.0f == %llu\n", 45252301458.0, (unsigned long long)(45252301458.0));
The output is:

Quote:

45252301458 == 2302628498
This is clearly incorrect. 64 bits is more than enough to represent such an integer, so why is it failing? Can I work around this?

Thanks.

theNbomr 12-15-2010 09:53 AM

Are you sure that your compiler treats 'unsigned long long' as a 64 bit integer? Does printf() support 'long long'? Try splitting the 64-bit integer into two 32-bit integers, and try printf()ing those independently.

--- rod.


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