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std::function vs template
...eam>
template <typename F>
float calc1(F f, float x) {
return 1.0f + 0.002*x+f(x*1.223) ;
}
float calc2(std::function<float(float)> f,float x) {
return 1.0f + 0.002*x+f(x*1.223) ;
}
int main() {
using namespace std::chrono;
const auto tp1 = high_resolution_clock::n...
How do streaming resources fit within the RESTful paradigm?
...ich allows us to access a list of streams:
GET /media/
<?xml version="1.0" encoding="UTF-8" ?>
<media-list uri="/media">
<media uri="/media/1" />
<media uri="/media/2" />
...
</media-list>
...and also to individual streams:
GET /media/1
<?xml versio...
What's the difference between “version number” in iTunes Connect, “bundle version”, “bundle version
...
I recently submitted a build with CFBundleVersion with "1.0.2 RC3" and it bounced with error message: "The bundle is invalid. The key CFBundleVersion in the Info.plist file must be a period-separated list of non-negative integers." I think the nn.n.nxnnn is the correct format to u...
How to find the .NET framework version of a Visual Studio project?
...t depends which version of Visual Studio:
In 2002, all projects use .Net 1.0
In 2003, all projects use .Net 1.1
In 2005, all projects use .Net 2.0
In 2008, projects use .Net 2.0, 3.0, or 3.5; you can change the version in Project Properties
In 2010, projects use .Net 2.0, 3.0, 3.5, or 4.0; you can...
ContinuousSpeech 连续语音识别扩展：持续语音识别无需重复启动 · App Inventor 2 中文网
...
版本
日期
修改内容
1.0
2021-03-13
初始版本发布
1.1
2022-02-16
修复 Android 11 兼容性问题，增加属性与改进
1.2
2022-09-01
添加语言选择功能
...
How do I check to see if a value is an integer in MySQL?
...| is_int |
| --- | ------ |
| 1 | 1 |
---
**Query #2**
SELECT 1.1, (LENGTH(CAST(1 AS UNSIGNED))) = CASE WHEN CAST(1.1 AS UNSIGNED) = 0 THEN CAST(1.1 AS UNSIGNED) ELSE (LENGTH(1.1)) END AS is_int;
| 1.1 | is_int |
| --- | ------ |
| 1.1 | 0 |
---
**Query #3**
SELECT "1", (LEN...
The difference between the Runnable and Callable interfaces in Java
...not do everything that Callable does!
Runnable has been around since Java 1.0, but Callable was only introduced in Java 1.5 ... to handle use-cases that Runnable does not support. In theory, the Java team could have changed the signature of the Runnable.run() method, but this would have broken bin...
data.frame rows to a list
... 29.3
purrr 100 24.1 28.6 32.9 44.9 40.5 183 4490 1.0
Also we can get the same result with Rcpp:
#include <Rcpp.h>
using namespace Rcpp;
// [[Rcpp::export]]
List df2list(const DataFrame& x) {
std::size_t nrows = x.rows();
std::size_t ncols = x.cols();
...
PHP Get Site URL Protocol - http vs https
...
$_SERVER['SERVER_PROTOCOL'] is made to store HTTP/1.0 or HTTP/1.1 depending on the protocol version, what sort of HTTP server configuration do you talk about, storing https information on this string coming from the http query?
– regilero
...
Plugin execution not covered by lifecycle configuration (JBossas 7 EAR archetype)
I am using Eclipse 3.7 Indigo with Maven M2E Plugin 1.0.100.
10 Answers
10
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