typenameF>constexprvoidloop(std::index_sequence<Is...>,F&&f){usingarray_t=int[];(void)array...
编译期的 loop 可以简单地认为把通常的 loop 进行 unroll 操作，同时我们还要确保循环下标是个编译期常量...
With C++14, constexpr functions can make use of most control structures available in general C++ code. So, instead of writing unwieldy template code or somewhat arcane one-liners, we can now just use a plain for loop: 使用C++14,constexpr函数可以使用常规C++代码中的大部分控制结构。因此,现在可...
With C++14, constexpr functions can make use of most control structures available in general C++ code. So, instead of writing unwieldy template code or somewhat arcane one-liners, we can now just use a plain for loop: 使用C++14,constexpr函数可以使用常规C++代码中的大部分控制结构。因此,现在可...
constexprintguaranteed_to_evaluate_for_loop() { ``for(; always(22); ) ``newint`` (); ``// illegal expression, guaranteed to be hit ``return0; } NSDMI for aggregates 聚合类型的非静态数据成员的更改的范围更为有限,但它会自动改进现有的许多代码。在C++11中,如果有默认成员初始化,那么...
问用于循环编译的constexprEN1.SQL Prifiler：捕捉事件类型为SP和T-SQL的事件（Starting、Stmtcompleted、...
for (int i=0; i<a; +=i) sum +=fac(i); // error : loop in constexpr function return sum; } 也如内联函数一样,在不同.h文件中,定义必须相同。可以认为constexpr函数是一个受限制的内联函数。 Constexpr函数不能写操作非局部函数。但是可以读操作非局部函数,可以使用作引用参数,但是也不能作写...
Ela pode conter instruções if e switch e todas as instruções de loop, incluindo for, for baseadas em intervalo, while e do-while. Pode conter declarações de variáveis locais, mas a variável deve ser inicializada. Deve ser um tipo literal e não pode ser static ou ...
g++-6.2 worked without any extra flag related to constexpr as there was no limitation of constant's loop counts at this version. With g++-8.3, I needed to enlarge constexpr's loop count with-fconstexpr-loop-limit. The maximum number we can specify is2**31 - 1. ...
// choosing the larger of {begin, end} as the loop terminator return { @@ -116,7 +116,7 @@ integer_range<Integer2> irange(Integer1 begin, Integer2 end) { template < typename Integer, std::enable_if_t<std::is_integral_v<Integer>, bool> = true> integer_range<Integer, true> i...