Basic Types This is a basic overview over datatypes after a program has been compiled. All excamples have been compiled with gcc, it might be worthwhile to comapre the output for Visualstudio. Everything is compiled as x64, therefore padding is usually done on 8 byte sizes and pointers are also 8 byte, for 32 bit applications this should be different (4 byte). Local and Global variables This example uses global and local variables.