STD::INDIRECT_ARRAY(3)

✨ std::indirect_array< _Tp > ✨

okay bestie, welcome to the Library Functions Manual entry for std::indirect_array< _Tp > 💖 no cap, this is a whole vibe.

🌸 NAME 🌸

std::indirect_array< _Tp > — Reference to arbitrary subset of an array.

---

🎀 SYNOPSIS 🎀

#include <valarray>

💅 Public Types

• typedef _Tp value_type

🦋 Public Member Functions

• indirect_array (const indirect_array &) — Copy constructor. Both slices refer to the same underlying array. (yes, same underlying array, they're literally sharing, it's giving twins 👯)
• template<class _Dom> void operator%= (const _Expr< _Dom, _Tp > &) const
• void operator%= (const valarray< _Tp > &) const — Modulo slice elements by corresponding elements of v.
• template<class _Dom> void operator&= (const _Expr< _Dom, _Tp > &) const
• void operator&= (const valarray< _Tp > &) const — Logical and slice elements with corresponding elements of v.
• template<class _Dom> void operator*= (const _Expr< _Dom, _Tp > &) const
• void operator*= (const valarray< _Tp > &) const — Multiply slice elements by corresponding elements of v.
• template<class _Dom> void operator+= (const _Expr< _Dom, _Tp > &) const
• void operator+= (const valarray< _Tp > &) const — Add corresponding elements of v to slice elements.
• template<class _Dom> void operator-= (const _Expr< _Dom, _Tp > &) const
• void operator-= (const valarray< _Tp > &) const — Subtract corresponding elements of v from slice elements.
• template<class _Dom> void operator/= (const _Expr< _Dom, _Tp > &) const
• void operator/= (const valarray< _Tp > &) const — Divide slice elements by corresponding elements of v.
• template<class _Dom> void operator<<= (const _Expr< _Dom, _Tp > &) const
• void operator<<= (const valarray< _Tp > &) const — Left shift slice elements by corresponding elements of v.
• template<class _Dom> void operator= (const _Expr< _Dom, _Tp > &) const
• void operator= (const _Tp &) const — Assign all slice elements to t.
• indirect_array & operator= (const indirect_array &) — Assignment operator. Assigns elements to corresponding elements of a.
• void operator= (const valarray< _Tp > &) const — Assign slice elements to corresponding elements of v.
• template<class _Dom> void operator>>= (const _Expr< _Dom, _Tp > &) const
• void operator>>= (const valarray< _Tp > &) const — Right shift slice elements by corresponding elements of v.
• template<class _Dom> void operator^= (const _Expr< _Dom, _Tp > &) const
• void operator^= (const valarray< _Tp > &) const — Logical xor slice elements with corresponding elements of v.
• template<class _Dom> void operator|= (const _Expr< _Dom, _Tp > &) const
• void operator|= (const valarray< _Tp > &) const — Logical or slice elements with corresponding elements of v.

🌈 Friends

• class gslice_array< _Tp >
• class valarray< _Tp >

---

💜 Detailed Description 💜

template<class _Tp>
class std::indirect_array< _Tp >

Reference to arbitrary subset of an array.

ok so picture this 🫶 — an indirect_array is a reference to the actual elements of an array, and which elements it points at is decided by an ordered array of indices. It's not a copy, bestie, it's a little window into the real thing.

The way to get an indirect_array is to call operator[](valarray<size_t>) on a valarray. The returned indirect_array then permits carrying operations out on the referenced subset of elements in the original valarray. So you grab your lil slice, you do your math, and the original array is the one that actually changed. main character energy, honestly ✨

For example, if an indirect_array is obtained using the array (4,2,0) as an argument, and then assigned to an array containing (1,2,3), then the underlying array will have array[0]==3, array[2]==2, and array[4]==1. the way that index 0 gets the THIRD value… yeah it's flipped, that's the whole point, it's indexed by the index list 🎀

🧚 Parameters

• Tp — Element type.

---

⭐ Member Function Documentation ⭐

template<class _Tp> void std::indirect_array< _Tp >::operator%= (const valarray< _Tp > & ) const

Modulo slice elements by corresponding elements of v. 💀

template<class _Tp> void std::indirect_array< _Tp >::operator&= (const valarray< _Tp > & ) const

Logical and slice elements with corresponding elements of v.

template<class _Tp> void std::indirect_array< _Tp >::operator*= (const valarray< _Tp > & ) const

Multiply slice elements by corresponding elements of v.

template<class _Tp> void std::indirect_array< _Tp >::operator+= (const valarray< _Tp > & ) const

Add corresponding elements of v to slice elements.

template<class _Tp> void std::indirect_array< _Tp >::operator-= (const valarray< _Tp > & ) const

Subtract corresponding elements of v from slice elements.

template<class _Tp> void std::indirect_array< _Tp >::operator/= (const valarray< _Tp > & ) const

Divide slice elements by corresponding elements of v.

template<class _Tp> void std::indirect_array< _Tp >::operator<<= (const valarray< _Tp > & ) const

Left shift slice elements by corresponding elements of v.

template<class _Tp> void std::indirect_array< _Tp >::operator>>= (const valarray< _Tp > & ) const

Right shift slice elements by corresponding elements of v.

template<class _Tp> void std::indirect_array< _Tp >::operator^= (const valarray< _Tp > & ) const

Logical xor slice elements with corresponding elements of v.

template<class _Tp> void std::indirect_array< _Tp >::operator|= (const valarray< _Tp > & ) const

Logical or slice elements with corresponding elements of v.

---

👑 Author 👑

Generated automatically by Doxygen for libstdc++ from the source code.

---

and that's the whole page, bestie 🥰 this one's from libstdc++, and it's filed in the manual as std::indir...ray< _Tp >(3) — go forth and slice, ily, bye 💖✨🦋