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When to use AtomicReference in Java?
...n true) reference assignment (i.e. =) is itself atomic (updating primitive 64-bit types like long or double may not be atomic; but updating a reference is always atomic, even if it's 64 bit) without explicitly using an Atomic*.
See the Java Language Specification 3ed, Section 17.7.
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Unable to find valid certification path to requested target - error even after cert imported
...e. It doesn't explain why or why not it works.
– user6490459
Dec 16 '18 at 11:01
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doGet and doPost in Servlets
...eter("txtNHSNo");
String attachment1 = request.getParameter("base64textarea1");
String attachment2 = request.getParameter("base64textarea2");
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How to check command line parameter in “.bat” file?
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Look at http://ss64.com/nt/if.html for an answer; the command is IF [%1]==[] GOTO NO_ARGUMENT or similar.
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What happens to a declared, uninitialized variable in C? Does it have a value?
... klutt
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answered Oct 20 '09 at 21:27
bdonlanbdonlan
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How do I set a cookie on HttpClient's HttpRequestMessage
...RequestMessage.Headers.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36");
httpRequestMessage.Headers.Add("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8");
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Is it possible to make a type only movable and not copyable?
...bject byte-by-byte, not following pointers, e.g. if you have (&usize, u64), it is 16 bytes on a 64-bit computer, and a shallow copy would be taking those 16 bytes and replicating their value in some other 16-byte chunk of memory, without touching the usize at the other end of the &. That is,...
Is there a REAL performance difference between INT and VARCHAR primary keys?
...ring the test.
148.6 GB SSD drive, with plenty of free space.
Ubuntu 16.04 64-bit
MySQL Ver 14.14 Distrib 5.7.20, for Linux (x86_64)
The tables:
create table jan_int (data1 varchar(255), data2 int(10), myindex tinyint(4)) ENGINE=InnoDB;
create table jan_int_index (data1 varchar(255), data2 int(10...
Generate random numbers using C++11 random library
...ndl;
//mt19937 dist (1234); //for 32 bit systems
mt19937_64 dist (1234); //for 64 bit systems
for (int i = 0; i<10; ++i)
cout << dist() << ' ';
}
void random_seed_mt19937_2()
{
space();
cout << "mersenne twister sp...
GDB corrupted stack frame - How to debug?
... just do:
(gdb) set $pc = *(void **)$esp
(gdb) set $esp = $esp + 4
With 64-bit x86 code you need
(gdb) set $pc = *(void **)$rsp
(gdb) set $rsp = $rsp + 8
Then, you should be able to do a bt and figure out where the code really is.
The other 1% of the time, the error will be due to overwriting...