[simd.cond]

# 29 Numerics library [[numerics]](./#numerics)

## 29.10 Data-parallel types [[simd]](simd#cond)

### 29.10.8 basic_vec non-member operations [[simd.nonmembers]](simd.nonmembers#simd.cond)

#### 29.10.8.4 basic_vec exposition only conditional operators [simd.cond]

[ð](#itemdecl:1)

`friend constexpr basic_vec
simd-select-impl(const mask_type& mask, const basic_vec& a, const basic_vec& b) noexcept;
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/numerics.tex#L18297)

*Returns*: A basic_vec object where the ith element equalsmask[i] ? a[i] : b[i] for all i in the range of
[0, size())[.](#1.sentence-1)
