C++0x新标准

C&＃43;&＃43;0x会在不久的将来通过。那么你知道标准库都有哪些改变吗&＃xff1f;我搜集了一份标准库改动的列表&＃xff08;这里没有包含一些行为上的细微改动以及和concept相关的改动&＃xff09;。

1. 新增内容

system_error&＃xff1a;
    新增的头文件
array&＃xff0c;vector&＃xff0c;deque&＃xff0c;list&＃xff0c;string&＃xff0c;map&＃xff0c;set&＃xff0c;unordered_map&＃xff0c;unordered_set&＃xff1a;
    成员函数&＃xff1a;cbegin&＃xff0c;cend&＃xff0c;crbegin&＃xff0c;crend
vector&＃xff0c;deque&＃xff0c;string&＃xff1a;
    成员函数&＃xff1a;shrink_to_fit
map&＃xff0c;unordered_map&＃xff1a;
    成员函数&＃xff1a;at
type_traits&＃xff1a;
    新增traits&＃xff1a;
        is_lvalue_reference&＃xff0c;is_rvalue_reference
        has_trivial_default_constructor&＃xff0c;has_trivial_copy_constructor&＃xff0c;has_nothrow_default_constructor&＃xff0c;has_nothrow_copy_constructor
string&＃xff1a;
    新增类型&＃xff1a;u16string&＃xff0c;u32string
    新增函数&＃xff1a;
        stoi&＃xff0c;stol&＃xff0c;stoul&＃xff0c;stoll&＃xff0c;stoull&＃xff0c;stof&＃xff0c;stod&＃xff0c;stold
        to_string&＃xff0c;to_wstring
algorithm&＃xff1a;
    新增函数&＃xff1a;
        all_of&＃xff0c;any_of&＃xff0c;none_of&＃xff0c;find_if_not&＃xff0c;copy_if&＃xff0c;partition_copy&＃xff0c;is_partitioned&＃xff0c;partition_point
        minmax_element
        is_heap_until&＃xff0c;is_heap
        is_sorted_until&＃xff0c;is_sorted
        next,prev
        min,max,minmax
        copy_n
random&＃xff1a;
    新增类&＃xff1a;seed_seq和许多新的随机分布
    新增函数&＃xff1a;generate_canonical
    新增类型&＃xff1a;
        ranlux24_base&＃xff0c;ranlux48_base&＃xff0c;ranlux24&＃xff0c;ranlux48&＃xff0c;knuth_b
        default_random_engine
    对于linear_congruential&＃xff0c;subtract_with_carry&＃xff0c;mersenne_twister&＃xff0c;discard_block&＃xff0c;xor_combine等类&＃xff1a;
        新增了接受seed_seq类型参数的构造函数&＃xff0c;成员函数"seed"以及相应的_engine类
memory&＃xff1a;
    新增类&＃xff1a;default_delete,unique_ptr
    新增函数&＃xff1a;allocate_shared,make_shared
functional&＃xff1a;
    新增仿函数&＃xff1a;bit_and&＃xff0c;bit_or&＃xff0c;bit_xor
numeric&＃xff1a;
    新增函数&＃xff1a;iota
iomanip&＃xff1a;
    新增函数&＃xff1a;
        get_money&＃xff0c;put_money
        get_time&＃xff0c;put_time
ios&＃xff1a;
    新增函数&＃xff1a;defaultfloat
iosfwd&＃xff1a;
    新增类型&＃xff1a;char_traits&＃xff0c;char_traits
limits&＃xff1a;
    成员函数&＃xff1a;max_digits10&＃xff0c;lowest

2. 来自tr1

array
unordered_map
unordered_set
regex
random
type_traits
tuple
functional
utility
    get
ios
    hexfloat

3. 其它

set&＃xff0c;map&＃xff0c;unordered_map&＃xff0c;unordered_set&＃xff1a;
    成员函数"erase"将有返回值&＃xff08;和序列容器一致&＃xff09;
string&＃xff1a;
    pop_back&＃xff0c;front&＃xff0c;back&＃xff08;和vector一致&＃xff09;
bitset&＃xff1a;
    构造函数&＃xff1a;unsigned long -> unsigned long long
fstream&＃xff1a;
    构造函数和open成员函数接受传入string和wstring类型的filename&＃xff08;C&＃43;&＃43;03只支持字符串指针&＃xff09;