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What is &&& operation in C
...d type, where you can actually overload unary operator &, it might be different, but it's still a very bad idea.
If you turn on warnings, you'll get something like:
warning: the address of ‘i’ will always evaluate as ‘true’
...
Unsure if I understand TransactionAwarePersistenceManagerFactoryProxy
...a plain JDO PersistenceManagerFactory . Another question is: what happens if the proxy doesn't get made properly? Can I still use it to access my factory to create a transaction aware persistence manager? If the object managed by the factory is a singleton, does this change things? Why not just acc...
ngModel Formatters and Parsers
I posted the same question in different form, but no one answered. I am not getting a clear picture of what the Formatters and Parsers do in angular js.
...
libcurl网络连接使用tcp/ip - C/C++ - 清泛网 - 专注C/C++及内核技术
...ocket */
long sockextr;
size_t iolen;
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "127.0.0.1");
curl_easy_setopt(curl, CURLOPT_PORT, 7102);
/* Do not do the transfer - only connect to host */
curl_easy_setopt(curl, CURLOPT_CONNECT_ONLY, 1L);
...
ssl证书申请报错：challenge = [c for c in authorization[\'challenges\']...
...sl证书申请报错：challenge = [c for c in authorization['challenges'] if c['type'] == "http-01"][0] IndexError: list index out of rangechallenge-list-index-out-of-range使用acme-tiny申请ssl证书时报错：challenge = [c for c in authorization[& 39;challenges& 39;] if c[& 39;type& 39;] == "...
What's wrong with this 1988 C code?
...When the preprocessor expands them, your code will look roughly like:
if (c == ' ' || c == '\n' || c == '\t')
state = 0;; /* <--PROBLEM #1 */
else if (state == 0;) { /* <--PROBLEM #2 */
state = 1;;
That second semicolon causes the else to have no previous if as a mat...
in_array multiple values
... to the targets:
$haystack = array(...);
$target = array('foo', 'bar');
if(count(array_intersect($haystack, $target)) == count($target)){
// all of $target is in $haystack
}
Note that you only need to verify the size of the resulting intersection is the same size as the array of target valu...
Concatenating two std::vectors
...
I have a question. Will this work if vector1 and vector2 are the same vectors?
– Alexander Rafferty
Jul 17 '11 at 9:36
6
...
Automatic HTTPS connection/redirect with node.js/express
...{
res.redirect('https://' + req.headers.host + req.url);
// Or, if you don't want to automatically detect the domain name from the request header, you can hard code it:
// res.redirect('https://example.com' + req.url);
})
// have it listen on 8080
http.listen(8080);
The https expres...
How to debug a referenced dll (having pdb)
...
If you have a project reference, it should work immediately.
If it is a file (dll) reference, you need the debugging symbols (the "pdb" file) to be in the same folder as the dll. Check that your projects are generating debug...