Home Docs Blog KSF GitHub

Home Docs Blog KSF GitHub ↗

std::String::basic<Char, Traits>::operator in

Search across all documentation pages.

Try "install", "syntax", "memory"...

↑↓ navigate ↵ open Esc close

Welcome to Kairo Language Compiler Compliance Installation Philosophy

Language

Async & Await & Thread & Spawn Basic Syntax Cast Expressions Control Flow Default & Deleted Functions Evaluated Functions FFI (Foreign Function Interface)Functions Hello World Memory Modules Objects Operators Panics and Exceptions Pointers Primitives Variadic & Key-Value Functions

Library

Core

libcxx Namespace

Functions

reference reference

Std

Functions

std::as_cast<To, From>std::as_const<To, From>std::as_unsafe<To, From>std::char_to_cchar std::crash<T>std::endl std::erase_type<T>std::next std::nptr_to_string std::nstring_to_string std::range std::string_to_nstring std::stringf std::to_string std::wptr_to_nptr

Questionable

Constructors

std::Questionable<T>::Questionable (Constructor)std::Questionable<T>::Questionable (Constructor)std::Questionable<T>::Questionable (Constructor)std::Questionable<T>::Questionable (Constructor)std::Questionable<T>::Questionable (Constructor)

Operators

std::Questionable<T>::operator as std::Questionable<T>::operator as std::Questionable<T>::operator in std::Questionable<T>::operator T std::Questionable<T>::operator!=std::Questionable<T>::operator?std::Questionable<T>::operator*std::Questionable<T>::operator==

Range

Constructors

std::Range<T>::Range (Constructor)std::Range<T>::Range (Constructor)

Methods

std::Range<T>::begin std::Range<T>::contains std::Range<T>::end std::Range<T>::is_empty std::Range<T>::step

Operators

std::Range<T>::operator in std::Range<T>::operator in

std::Function<ReturnType, Args...>std::Generator<YieldType>std::null_t std::Questionable<T>std::Range<T>std::TypeErasure

Typeerasure

Methods

std::TypeErasure::clone std::TypeErasure::destroy std::TypeErasure::operator*std::TypeErasure::type_info

Std Abi

std::abi::demangle std::abi::demangle_partial std::abi::is_mangled std::abi::mangle

Std Error

std::Error::BaseError std::Error::NullValueError std::Error::RuntimeError std::Error::StateMismatchError std::Error::TypeMismatchError

Std Legacy

std::Legacy::new<T>

Std Memory

std::Memory::address_type std::Memory::as_pointer<T>std::Memory::as_reference<T>std::Memory::compare std::Memory::copy std::Memory::delete_aligned<T>std::Memory::exchange<T>std::Memory::find<T>std::Memory::forward<T>std::Memory::heap_start std::Memory::in_rotdata std::Memory::in_stack std::Memory::move std::Memory::new_aligned<T>std::Memory::set std::Memory::stack_bounds std::Memory::stack_size std::Memory::stack_start

Std Meta

std::Meta::all_extents_removed<T>std::Meta::as_const_volatile<T>std::Meta::as_const<T>std::Meta::as_cvref<T>std::Meta::as_lvalue_reference<T>std::Meta::as_rvalue_reference<T>std::Meta::const_removed<T>std::Meta::const_volatile_removed<T>std::Meta::cvref_removed<T>std::Meta::declval<T>std::Meta::enable_if<Condition, T>std::Meta::ref_as_ptr<T>std::Meta::reference_removed<T>

Std Panic

Frame

Constructors

std::Panic::Frame::Frame (Constructor)std::Panic::Frame::Frame (Constructor)std::Panic::Frame::Frame (Constructor)std::Panic::Frame::Frame (Constructor)

Methods

std::Panic::Frame::file std::Panic::Frame::get_context std::Panic::Frame::line std::Panic::Frame::reason

Operators

std::Panic::Frame::operator panic

Framecontext

Methods

std::Panic::FrameContext::crash std::Panic::FrameContext::object std::Panic::FrameContext::operator==std::Panic::FrameContext::type_name

std::Panic::Frame std::Panic::FrameContext

Std String

Basic

Constructors

std::String::basic<Char, Traits>::basic (Constructor)std::String::basic<Char, Traits>::basic (Constructor)std::String::basic<Char, Traits>::basic (Constructor)std::String::basic<Char, Traits>::basic (Constructor)std::String::basic<Char, Traits>::basic (Constructor)std::String::basic<Char, Traits>::basic (Constructor)std::String::basic<Char, Traits>::basic (Constructor)std::String::basic<Char, Traits>::basic (Constructor)

Methods

std::String::basic<Char, Traits>::append std::String::basic<Char, Traits>::append std::String::basic<Char, Traits>::append std::String::basic<Char, Traits>::clear std::String::basic<Char, Traits>::contains std::String::basic<Char, Traits>::contains std::String::basic<Char, Traits>::empty std::String::basic<Char, Traits>::ends_with std::String::basic<Char, Traits>::ends_with std::String::basic<Char, Traits>::ends_with std::String::basic<Char, Traits>::find_first_not_of std::String::basic<Char, Traits>::find_first_of std::String::basic<Char, Traits>::find_last_not_of std::String::basic<Char, Traits>::find_last_of std::String::basic<Char, Traits>::is_empty std::String::basic<Char, Traits>::l_strip std::String::basic<Char, Traits>::length std::String::basic<Char, Traits>::lfind std::String::basic<Char, Traits>::push_back std::String::basic<Char, Traits>::r_strip std::String::basic<Char, Traits>::raw std::String::basic<Char, Traits>::raw_string std::String::basic<Char, Traits>::replace std::String::basic<Char, Traits>::reserve std::String::basic<Char, Traits>::resize std::String::basic<Char, Traits>::rfind std::String::basic<Char, Traits>::size std::String::basic<Char, Traits>::split std::String::basic<Char, Traits>::split_lines std::String::basic<Char, Traits>::starts_with std::String::basic<Char, Traits>::starts_with std::String::basic<Char, Traits>::starts_with std::String::basic<Char, Traits>::strip std::String::basic<Char, Traits>::subslice

Operators

std::String::basic<Char, Traits>::operator as std::String::basic<Char, Traits>::operator as std::String::basic<Char, Traits>::operator in std::String::basic<Char, Traits>::operator in std::String::basic<Char, Traits>::operator slice_t std::String::basic<Char, Traits>::operator!=std::String::basic<Char, Traits>::operator[]std::String::basic<Char, Traits>::operator[]std::String::basic<Char, Traits>::operator+std::String::basic<Char, Traits>::operator+std::String::basic<Char, Traits>::operator+std::String::basic<Char, Traits>::operator+=std::String::basic<Char, Traits>::operator+=std::String::basic<Char, Traits>::operator+=std::String::basic<Char, Traits>::operator<std::String::basic<Char, Traits>::operator<=std::String::basic<Char, Traits>::operator=std::String::basic<Char, Traits>::operator=std::String::basic<Char, Traits>::operator=std::String::basic<Char, Traits>::operator==std::String::basic<Char, Traits>::operator>std::String::basic<Char, Traits>::operator>=

Slice

Constructors

std::String::slice<Char, Traits>::slice (Constructor)std::String::slice<Char, Traits>::slice (Constructor)std::String::slice<Char, Traits>::slice (Constructor)std::String::slice<Char, Traits>::slice (Constructor)std::String::slice<Char, Traits>::slice (Constructor)std::String::slice<Char, Traits>::slice (Constructor)std::String::slice<Char, Traits>::slice (Constructor)std::String::slice<Char, Traits>::slice (Constructor)

Methods

std::String::slice<Char, Traits>::compare std::String::slice<Char, Traits>::contains std::String::slice<Char, Traits>::contains std::String::slice<Char, Traits>::ends_with std::String::slice<Char, Traits>::exchange std::String::slice<Char, Traits>::find_first_not_of std::String::slice<Char, Traits>::find_first_of std::String::slice<Char, Traits>::find_last_not_of std::String::slice<Char, Traits>::find_last_of std::String::slice<Char, Traits>::is_empty std::String::slice<Char, Traits>::l_strip std::String::slice<Char, Traits>::length std::String::slice<Char, Traits>::lfind std::String::slice<Char, Traits>::r_strip std::String::slice<Char, Traits>::raw std::String::slice<Char, Traits>::replace std::String::slice<Char, Traits>::replace std::String::slice<Char, Traits>::rfind std::String::slice<Char, Traits>::size std::String::slice<Char, Traits>::split std::String::slice<Char, Traits>::split_lines std::String::slice<Char, Traits>::starts_with std::String::slice<Char, Traits>::strip std::String::slice<Char, Traits>::subslice

Operators

std::String::slice<Char, Traits>::operator in std::String::slice<Char, Traits>::operator in std::String::slice<Char, Traits>::operator view_t std::String::slice<Char, Traits>::operator!=std::String::slice<Char, Traits>::operator[]std::String::slice<Char, Traits>::operator<std::String::slice<Char, Traits>::operator<=std::String::slice<Char, Traits>::operator==std::String::slice<Char, Traits>::operator>std::String::slice<Char, Traits>::operator>=

std::String::basic<Char, Traits>std::String::compare_locale<T>std::String::compare_n<T>std::String::compare<T>std::String::concat_n<T>std::String::concat<T>std::String::copy_n<T>std::String::copy<T>std::String::error std::String::find_any<T>std::String::find_last<T>std::String::find_sub<T>std::String::find<T>std::String::length<T>std::String::prefix_length<T>std::String::slice<Char, Traits>std::String::split<T>std::String::transform<T>

Home Docs std::String::basic<Char, Traits>::operator in

`operator in`

Contains operator for character

Signature

op in(self, chr: CharT) -> bool

Specifiers

constexpr
const

See Also

Back to basic<Char, Traits>

Previous std::String::basic<Char, Traits>::operator in

Next std::String::basic<Char, Traits>::operator slice_t

Report an issue Edit this page

On this page

Signature
Specifiers
See Also

On this page

Signature
Specifiers
See Also

Control everything. Compromise nothing.
Compiled systems language. Two-way C++ interop.

Built by the Kairo Software Foundation

Language

Documentation Installation Blog Changelog ↗

Community

GitHub ↗KSF Discord ↗Twitter/X ↗

© 2026 Kairo Software Foundation. Open source under the Apache 2.0 License (with Runtime Exception).

v0.1.0-alpha