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| author | bunnei <bunneidev@gmail.com> | 2021-04-01 23:04:54 -0700 |
|---|---|---|
| committer | bunnei <bunneidev@gmail.com> | 2021-05-05 16:40:49 -0700 |
| commit | 02c2b28cd0f341fd955f9648d9174777e0b60689 (patch) | |
| tree | 1e9ce7f349b8cf14d0537ecb952da0435227515c /src/common/common_funcs.h | |
| parent | 66f2ad716be8f880e5bb6cc572c76812073f6db4 (diff) | |
common: common_funcs: Add Size helper function.
Diffstat (limited to 'src/common/common_funcs.h')
| -rw-r--r-- | src/common/common_funcs.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/common/common_funcs.h b/src/common/common_funcs.h index 73c8c9354e..19bb021e01 100644 --- a/src/common/common_funcs.h +++ b/src/common/common_funcs.h @@ -136,4 +136,19 @@ namespace Common { return u32(a) | u32(b) << 8 | u32(c) << 16 | u32(d) << 24; } +// std::size() does not support zero-size C arrays. We're fixing that. +template <class C> +constexpr auto Size(const C& c) -> decltype(c.size()) { + return std::size(c); +} + +template <class C> +constexpr std::size_t Size(const C& c) { + if constexpr (sizeof(C) == 0) { + return 0; + } else { + return std::size(c); + } +} + } // namespace Common |