C++
📚 C++ Standard Library Headers
These are the standard headers defined by ISO C++.
🔢 Numbers & Math
<limits>— Type properties<climits>— Limits of integer types<cfloat>— Limits of floating-point types<cstdint>— Fixed-width integer types (C++11)<cinttypes>— Integer format macros (C++11)<stdfloat>— Extended floating types (C++23)<bit>— Bit manipulation (C++20)<cmath>— Math functions<numbers>— Math constants (C++20)<numeric>— Numeric algorithms<ratio>— Compile-time rational arithmetic (C++11)<complex>— Complex numbers<valarray>— Value arrays<cfenv>— Floating-point environment (C++11)<random>— Random numbers (C++11)<linalg>— Linear algebra (C++26)
✍️ Strings & Text
<string>—std::string<string_view>—std::string_view(C++17)<charconv>—to_chars,from_chars(C++17)<format>—std::format(C++20)<cctype>— Character classification<cstring>— C-style strings<cwchar>— Wide strings<cwctype>— Wide char classification<cuchar>— UTF conversion (C++11)
📦 Containers
<array>—std::array(C++11)<vector>—std::vector<deque>—std::deque<list>—std::list<forward_list>—std::forward_list(C++11)<map>—std::map,std::multimap<set>—std::set,std::multiset<unordered_map>— Hash maps (C++11)<unordered_set>— Hash sets (C++11)<stack>—std::stack<queue>—std::queue,std::priority_queue<span>—std::spanview (C++20)<mdspan>—std::mdspan(C++23)<flat_map>—std::flat_map(C++23)<flat_set>—std::flat_set(C++23)
📂 Input / Output
<iostream>— Standard streams<istream>— Input streams<ostream>— Output streams<ios>— Stream base classes<iosfwd>— Forward declarations<iomanip>— I/O manipulators<fstream>— File streams<sstream>— String streams<spanstream>— Span streams (C++23)<strstream>— Deprecated old string streams<cstdio>— C I/O<print>—std::print(C++23)<streambuf>— Stream buffers<syncstream>— Synchronized output streams (C++20)
🔧 Utilities
<any>—std::any(C++17)<optional>—std::optional(C++17)<variant>—std::variant(C++17)<expected>—std::expected(C++23)<tuple>—std::tuple(C++11)<functional>— Function objects, bind, invoke<bitset>— Fixed-size bitset<source_location>— Code location info (C++20)<debugging>— Debugging utilities (C++26)
🧵 Memory Management
<new>— Low-level memory utilities<memory>— Smart pointers, allocators<memory_resource>— Polymorphic allocators (C++17)<scoped_allocator>— Nested allocators (C++11)
⚡ Error Handling & Debugging
<cassert>— Assertions<cerrno>— Error codes<exception>— Exception handling<stdexcept>— Standard exceptions<system_error>— Error codes & conditions (C++11)<stacktrace>— Stacktrace (C++23)
🔄 Iterators & Ranges
<iterator>— Iterators<ranges>— Ranges library (C++20)<generator>—std::generator(C++23)
⚙️ Algorithms & Execution
<algorithm>— Sorting, searching, etc.<execution>— Parallel execution policies (C++17)
🌍 Localization
<locale>— Localization utilities<clocale>— C-style locale<codecvt>— Unicode conversion (C++11, deprecated C++17, removed C++26)<text_encoding>— Text encodings (C++26)
📁 Filesystem
<filesystem>— Paths and filesystem operations (C++17)
🔍 Regular Expressions
<regex>— Regex library (C++11)
🔒 Atomics & Concurrency
<atomic>— Atomic operations (C++11)
🧵 Threading & Parallelism
<thread>—std::thread(C++11)<mutex>— Mutexes (C++11)<shared_mutex>— Shared mutex (C++14)<condition_variable>— Thread waiting (C++11)<future>— Async computations (C++11)<stop_token>— Stop tokens (C++20)<barrier>— Barriers (C++20)<latch>— Latches (C++20)<semaphore>— Semaphores (C++20)<hazard_pointer>— Hazard pointers (C++26)<rcu>— Read-copy-update (C++26)
🧩 Core Concepts & Language Features
<concepts>— Fundamental concepts (C++20)<coroutine>— Coroutine support (C++20)<compare>— Three-way comparison (<=>, C++20)<type_traits>— Compile-time type information<typeinfo>— Runtime type information<typeindex>—std::type_index(C++11)<utility>— Utility components (move,swap, etc.)<initializer_list>—std::initializer_list(C++11)<version>— Implementation-dependent library info (C++20)