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Asked: 2026-05-15T18:43:55+00:00

Is there a C++ variant for the long primitive data-type? A C++ long is

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Is there a C++ variant for the long primitive data-type?
A C++ long is only 4 bytes, while a Java long is 8 bytes.

So: Is there a non-decimal primitive type with a size of 8 bytes in C++?
Maybe with some tricks?

Thanks

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1 Answer

  1. Editorial Team

    Microsoft Visual C++ defines an __int64 type that’s equivalent to Java’s long. gcc has int64_t. There’s even a long long int type defined in the ISO C99 standard, however according to the standard it’s at least 64 bits wide, but could be wider.

    But apart from the size, there’s also endianness to consider. The Java standard mandates big endian, but with C, endianness is AFAIK always platform-dependant.

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