Quote:
Originally Posted by rogue
"long long int" is redundant. "long long" is sufficient. For portable code, %llu should be used.
Also if you are using MinGW, there is probably a header called stdint.h. This has a predefined uint64_t variable type.
Finally, I try to avoid using "int" because some compilers treat an int as a 16 bit value (aka short int), even though the CPU and OS are 32-bit. You could use long, which will be 32 bits or 64 bits (depending upon the compiler, OS, and compiler options). I don't know if any compiler defines a long as 16 bits. I always use stdint.h to guarantee portability. Unfortunately M$ doesn't have such a header in Visual Studio, but you can #typedef those datatypes using WORD and DWORD appropriately to ensure portability.
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Unfortunately, %llu doesn't work for Mingw but thanks for the stdint tip.
It's unlikely I would port it but if so I could I always have conditional compilation based on that format string.