您不能将 std::remove_if() 与具有 const 部分的序列一起使用。 std::set<T> 元素的序列由 T const 对象组成。实际上,我们昨天在标准 C++ 委员会上讨论了这个问题,并且支持创建专门处理 erase() 来自容器的对象的算法。它看起来像这样(另见 N4009): template <class T, class Comp, class Alloc, class...
不能对包含const部件的序列使用std::remove_if()。std::set<T>元素序列由T const对象组成。实际上，...
void erase_if( std::set<Key, Compare, Alloc>& c, Pred pred ); (库基础 TS v2) 从容器擦除所有满足谓词 pred 的元素。等价于 for (auto i = c.begin(), last = c.end(); i != last;) { if (pred(*i)) i = c.erase(i); else ++i; }参数...
See also removeremove_if removes elements satisfying specific criteria (function template) ranges::removeranges::remove_if (C++20)(C++20) removes elements satisfying specific criteria (niebloid)
std::is_execution_policy_v<std::remove_cvref_t<ExecutionPolicy>> is true. (since C++20) If the output range overlaps with [first1, last1) or [first2, last2), the behavior is undefined. Parameters first1, last1 - the first sorted range of elements first2, last2 - the second ...
= last1; ++d_first) { if (first2 == last2) // 结束第二个范围,包含第一个范围的剩余: return std::copy(first1, last1, d_first); if (comp(*first2, *first1)) *d_first = *first2++; else { *d_first = *first1; if (!comp(*first1, *first2)) // 等价 => 不需要包含 *...
std::remove_pointer std::remove_reference std::remove_volatile std::rend(std::initializer_list) std::result_of std::rethrow_exception std::rethrow_if_nested std::return_temporary_buffer std::runtime_error std::set_new_handler std::set_terminate std::set_unexpected std::shared_ptr std::sh...
if let Some(env) = get_env_store() { env.lock().unwrap().remove(k); }4 changes: 2 additions & 2 deletions 4 library/std/src/sys/pal/solid/os.rs Original file line numberDiff line numberDiff line change @@ -191,7 +191,7 @@ pub fn getenv(k: &OsStr) -> Option<OsString>...
The idea is that whenever we create aWidget, we store its address in thes_allWidgetsset, and when we destroy one, we remove it from the set. The comment notes that this is just for debugging purposes, so that when we want to see what all the Widgets are doing, we can walk through...
This is a tracking issue for making std::env::{set_var, remove_var} unsafe to call in Rust 2024. #116888 (comment) About tracking issues Tracking issues are used to record the overall progress of implementation. They are also used as hub...