If you use the LLP 64 bit programming model, long is 32 bit, and a new type is created 'long long' for 64 bit. 64 bit versions of Windows use the LLP model. mo

If you use the LLP 64 bit programming model, long is 32 bit, and a new type is created 'long long' for 64 bit. 64 bit versions of Windows use the LLP model. more info here: http://en.wikipedia.org/wiki/64-bit#Specific_C-language_data_models http://en.wikipedia.org/wiki/64-bit#Specific_C-language_data...