2. library
        Other
        Standard Library - Miscellaneous headers
        Other headers part of the C++ standard library:

        <complex>
        Complex numbers library (header)
        <exception>
        Standard exceptions (header)
        <functional>
        Function objects (header)
        <iterator>
        Iterator definitions (header)
        <limits>
        Numeric limits (header)
        <locale>
        Localization library (header)
        <memory>
        Memory elements (header)
        <new>
        Dynamic memory (header)
        <numeric>
        Generalized numeric operations (header)
        <stdexcept>
        Exception classes (header)
        <string>
        Strings (header)
        <typeinfo>
        Type information (header)
        <utility>
        Utility components (header)
        <valarray>
        Library for arrays of numeric values (header)
        <algorithm>
        Standard Template Library: Algorithms (library)
        <chrono>
        Time library (header)
        <complex>
        Complex numbers library (header)
        <exception>
        Standard exceptions (header)
        <functional>
        Function objects (header)
        <initializer_list>
        Initializer list (header)
        <iterator>
        Iterator definitions (header)
        <limits>
        Numeric limits (header)
        <locale>
        Localization library (header)
        <memory>
        Memory elements (header)
        <new>
        Dynamic memory (header)
        <numeric>
        Generalized numeric operations (header)
        <random>
        Random (header)
        <ratio>
        Ratio header (header)
        <regex>
        Regular Expressions (header)
        <stdexcept>
        Exception classes (header)
        <string>
        Strings (header)
        <system_error>
        System errors (header)
        <tuple>
        Tuple library (header)
        <typeinfo>
        Type information (header)
        <type_traits>
        type_traits (header)
        <utility>
        Utility components (header)
        <valarray>
        Library for arrays of numeric values (header)
          2. 
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