C++

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Reference

• C library:

  • <cassert> (assert.h)
  • <cctype> (ctype.h)
  • <cerrno> (errno.h)
  • C++11
    <cfenv> (fenv.h)
  • <cfloat> (float.h)
  • C++11
    <cinttypes> (inttypes.h)
  • <ciso646> (iso646.h)
  • <climits> (limits.h)
  • <clocale> (locale.h)
  • <cmath> (math.h)
  • <csetjmp> (setjmp.h)
  • <csignal> (signal.h)
  • <cstdarg> (stdarg.h)
  • C++11
    <cstdbool> (stdbool.h)
  • <cstddef> (stddef.h)
  • C++11
    <cstdint> (stdint.h)
  • <cstdio> (stdio.h)
  • <cstdlib> (stdlib.h)
  • <cstring> (string.h)
  • C++11
    <ctgmath> (tgmath.h)
  • <ctime> (time.h)
  • C++11
    <cuchar> (uchar.h)
  • <cwchar> (wchar.h)
  • <cwctype> (wctype.h)

• Containers:

  • C++11
    <array>
  • <deque>
  • C++11
    <forward_list>
  • <list>
  • <map>
  • <queue>
  • <set>
  • <stack>
  • C++11
    <unordered_map>
  • C++11
    <unordered_set>
  • <vector>

• Input/Output:

  • <fstream>
  • <iomanip>
  • <ios>
  • <iosfwd>
  • <iostream>
  • <istream>
  • <ostream>
  • <sstream>
  • <streambuf>

• Multi-threading:

  • C++11
    <atomic>
  • C++11
    <condition_variable>
  • C++11
    <future>
  • C++11
    <mutex>
  • C++11
    <thread>

• Other:

  • <algorithm>
  • <bitset>
  • C++11
    <chrono>
  • C++11
    <codecvt>
  • <complex>
  • <exception>
  • <functional>
  • C++11
    <initializer_list>
  • <iterator>
  • <limits>
  • <locale>
  • <memory>
  • <new>
  • <numeric>
  • C++11
    <random>
  • C++11
    <ratio>
  • C++11
    <regex>
  • <stdexcept>
  • <string>
  • C++11
    <system_error>
  • C++11
    <tuple>
  • C++11
    <type_traits>
  • C++11
    <typeindex>
  • <typeinfo>
  • <utility>
  • <valarray>

<memory>

• classes

  • allocator
  • C++11
    allocator_arg_t
  • C++11
    allocator_traits
  • auto_ptr
  • auto_ptr_ref
  • C++11
    bad_weak_ptr
  • C++11
    default_delete
  • C++11
    enable_shared_from_this
  • C++11
    owner_less
  • C++11
    pointer_traits
  • raw_storage_iterator
  • C++11
    shared_ptr
  • C++11
    unique_ptr
  • C++11
    uses_allocator
  • C++11
    weak_ptr

• enum classes

  • C++11
    pointer_safety

• functions

  • C++11
    addressof
  • C++11
    align
  • C++11
    allocate_shared
  • C++11
    const_pointer_cast
  • C++11
    declare_no_pointers
  • C++11
    declare_reachable
  • C++11
    dynamic_pointer_cast
  • C++11
    get_deleter
  • C++11
    get_pointer_safety
  • get_temporary_buffer
  • C++11
    make_shared
  • return_temporary_buffer
  • C++11
    static_pointer_cast
  • C++11
    undeclare_no_pointers
  • C++11
    undeclare_reachable
  • uninitialized_copy
  • C++11
    uninitialized_copy_n
  • uninitialized_fill
  • uninitialized_fill_n

• objects

  • C++11
    allocator_arg

std::return_temporary_buffer

template <class T> void return_temporary_buffer (T* p);

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// get/return_temporary_buffer example
#include <iostream>
#include <memory>
#include <algorithm>

int main () {
  int numbers[] = {30,50,10,20,60,40};

  // use temporary buffer to sort and show the numbers:
  std::pair <int*,std::ptrdiff_t> result = std::get_temporary_buffer<int>(6);
  if (result.second>0)
  {
    std::uninitialized_copy (numbers,numbers+result.second,result.first);
    std::sort (result.first,result.first+result.second);
    std::cout << "sorted numbers  : ";
    for (int i=0;i<result.second;i++)
      std::cout << result.first[i] << " ";
    std::cout << '\n';
    std::return_temporary_buffer (result.first);
  }

  // show original numbers:
  std::cout << "unsorted numbers: ";
  for (int i=0;i<6;i++)
    std::cout << numbers[i] << " ";
  std::cout << '\n';
  return 0;
}

sorted numbers  : 10 20 30 40 50 60
unsorted numbers: 30 50 10 20 60 40