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Home/ Questions/Q 9239529
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Editorial Team
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Editorial Team
Asked: June 18, 20262026-06-18T08:00:36+00:00 2026-06-18T08:00:36+00:00

I have known this problem is compiler-dependent. So I want a reliable method to

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I have known this problem is compiler-dependent. So I want a reliable method to determine.

For example:

const wchar_t str[] = L"飞流直下三千尺";

How should I know whether str is little-endian or big-endian?

Is there a compiler’s guarantee that the endianness of a wide string literal is the same one as the target architectures?

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  1. Editorial Team
    Editorial Team
    2026-06-18T08:00:38+00:00Added an answer on June 18, 2026 at 8:00 am

    There’s no compiler guarantee that wchar_t even has an endianness (or that it’s Unicode, for that matter).

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