inline

问题 I've made a class for working with bits for unsigned int(8, 16, 32...), and I've been trying to benchmark it compared to the bare bitwise operations but getting an accurate test of the speed of bitwise operations is complicated to say the least. The reason for the wrapper is that it is a lot less complicated to use. Now, while this may be more academically useful than practically, I would like to know if it was possible to make a class wrapping around an int that is so transparent that it is

问题 I am trying to optimize the following code complex.cpp: typedef struct { float re; float im; } dcmplx; dcmplx ComplexConv(int len, dcmplx *hat, dcmplx *buf) { int i; dcmplx z, xout; xout.re = xout.im = 0.0; asm volatile ( "movs r3, #0\n\t" ".loop:\n\t" "vldr s11, [%[hat], #4]\n\t" "vldr s13, [%[hat]]\n\t" "vneg.f32 s11, s11\n\t" "vldr s15, [%[buf], #4]\n\t" "vldr s12, [%[buf]]\n\t" "vmul.f32 s14, s15, s13\n\t" "vmul.f32 s15, s11, s15\n\t" "adds %[hat], #8\n\t" "vmla.f32 s14, s11, s12\n\t"

问题 How do I get an input alert message to work only when imputing alphabets, not for numbers? Without letting any text tipped in. When imputing numbers there should be no alerts, but when imputing alphabets you get an alert. I accept a JavaScript tagged solution too, but if there is an inline solution then that is preferred. The problem with this function is that it lets the text you type in the box if you are fast tipper as I am. It should be without letting any text tipped in . JavaScript:

问题 Why isn't this allowed? type Foo() = static member Bar() = () let inline bar<^a>() = //ERROR: unexpected infix operator in pattern (^a : (static member Bar : unit -> unit)()) //Hypothetical usage: let _ = bar<Foo>() ...but this works fine? type Foo() = static member Bar() = new Foo() let inline bar() : ^a = (^a : (static member Bar : unit -> ^a)()) let x : Foo = bar() Are functions with statically resolved type parameters required to return an instance of the resolved type? 回答1: As you

问题 I have many C programs without recursion. I want to get the program without user-defined function but the main function. GCC can do the inline but that's in IR level so I can't get C code . SOURCE: int calc(int a , int b) { a=a+b-2; return a ; } int main() { int x=4,y=7; x=calc(x,y); return 0 ; } TARGET: int main() { int x=4,y=7; int calc_A=x,calc_B=y; calc_A=calc_A+calc_B-2; x=calc_A; return 0 ; } 回答1: There is a function attribute provided by gcc, called always_inline. Usage: int add(int

问题 I read and reread the relevant clauses about ODR in the C++ standard, but this question still remains open to me. The standard says that the definition of an inline function shall appear in every translation unit in which it is used, and the definitions shall be identical in a sense which is described in almost a page. It says the token sequence must be the same. Does it include the local identifier names? In other words does the following program violate the ODR? (I tried to test it myself

问题 I have R installed along with these two packages Rcpp and inline. (I am doing a project that consists of speeding up a painfully slow program in R and I decided to use Rcpp)...I know I am doing something wrong...probably missing a step but i cannot figure it out. Props to Dirk if you're reading this! Thanks for Rcpp and the brand new inline package pdf but...it's still not running. Please note that I'm a newbie. As stated before I cleaned out all other packages and only R is installed with

问题 I have this problem and I'm trying to solve it using jsfiddle but I'm not good in css. Hoping that you can help me solve this. I wanted to separate the next div on the second line. Just a little space to avoid the overlapping. I need it to display inline but the problem is if it goes to the next line, the next line of divs overlaps the previous line of divs. How can I add a margin from it knowing that I'm setting all the divs to display inline? Thanks in advance :) 回答1: Is this acceptable?

问题 In a Fortran project we use a binary search to find a desired value: integer function binsearch(tab, el) implicit none real, intent(in) :: tab(:), el integer :: a, b, mid a = 1 b = size(tab) do while (b - a > 1) mid = (a + b)/2 if (el >= tab(mid)) then a = mid else b = mid endif ! if (el < tab(mid + 1)) exit ! BAD OPTIMIZATION ! enddo binsearch = a end function binsearch Later on we simply use it foo = binsearch(tab, el) Unfortunately the surrounding routine is used so heavily, that the BAD

问题 <script th:inline="javascript" type="text/javascript"> //expose list data to javascript var listObject = /*[[${listObject}]]*/ []; </script> the replacement text printed into the file is different than what Jackson library's ObjectMapper does. With Thymeleaf in above example, listObject will be { "dataType":{ "$type":"DataType", "$name":"STRING" }, "friendlyName":"Customer Key" } If I print the object with ObjectMapper(which is also used with Spring @RequestBody/@ResponseBody), it will be {