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How to overcome root domain CNAME restrictions?
...uld be
present;
And Per IETF 'Common DNS Operational and Configuration Errors' Document:
This is often attempted by inexperienced administrators as an obvious
way to allow your domain name to also be a host. However, DNS
servers like BIND will see the CNAME and refuse to add any o...
What is the Java ?: operator called and what does it do?
...th branches must lead to methods with return values:
It is a compile-time error for either the second or the third operand expression to be an invocation of a void method.
In fact, by the grammar of expression statements (§14.8), it is not permitted for a conditional expression to appear in any co...
Twitter Bootstrap 3.0 how do I “badge badge-important” now
...r {
color: #ffffff;
text-decoration: none;
cursor: pointer;
}
.badge-error {
background-color: #b94a48;
}
.badge-error:hover {
background-color: #953b39;
}
.badge-warning {
background-color: #f89406;
}
.badge-warning:hover {
background-color: #c67605;
}
.badge-success {
background-co...
How do I determine whether my calculation of pi is accurate?
...l the digits are correct. But it is easy to see this since any computation error will propagate to the last digits.
Now this last step (verifying the conversion) is actually fairly important. One of the previous world record holders actually called us out on this because, initially, I didn't give...
Subclassing a Java Builder class
...stead of extends, or (c) throw everything away. I now have a weird compile error where leafBuilder.leaf().leaf() and leafBuilder.mid().leaf() is OK, but leafBuilder.leaf().mid().leaf() fails...
– Ken Y-N
Jun 19 '13 at 4:01
...
How do I convert a Vector of bytes (u8) to a string
...::str;
//
// pub fn from_utf8(v: &[u8]) -> Result<&str, Utf8Error>
//
// Assuming buf: &[u8]
//
fn main() {
let buf = &[0x41u8, 0x41u8, 0x42u8];
let s = match str::from_utf8(buf) {
Ok(v) => v,
Err(e) => panic!("Invalid UTF-8 sequence: {}", e...
Node.js: How to send headers with form data using request module?
...
throw new Error('undefined is not a valid uri or options object.') ^ Error: undefined is not a valid uri or options object. at request (C:\Users\pjt\node_modules\request\index.js:44:11) at Request._callback (C:\Users\pjt\route...
WinDbg基础资料（日本語） - IT优秀资料 - 清泛网 - 专注C/C++及内核技术
...or Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Windows Error Reporting\LocalDumps]
"DumpCount"=dword:0000000a
"DumpType"=dword:00000002
"CustomDumpFlags"=dword:00000000
"DumpFolder"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,49,\
00,4c,00,45,00,25,00,5c,0...
What are namespaces?
... print (echo) different messages each.
Normally, this would cause a syntax error, as you cannot have two functions that share the same name.
To fix this, you could put these functions into separate namespaces. This would allow you to use both functions without any errors.
...
Is delete this allowed?
...ject remains valid until after the throw takes place.
void myclass::throw_error()
{
std::unique_ptr<myclass> bye_bye(this);
throw std::runtime_exception(this->error_msg);
}
Note: if you're using a compiler older than C++11 you can use std::auto_ptr instead of std::unique_ptr, it ...