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Count how many records are in a CSV Python?
...e)
– KevinTydlacka
Jul 12 '18 at 22:05
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show 4 more comme...
When should I use cross apply over inner join?
...es you to do things that you cannot do with inner join.
Example (a syntax error):
select F.* from sys.objects O
inner join dbo.myTableFun(O.name) F
on F.schema_id= O.schema_id
This is a syntax error, because, when used with inner join, table functions can only take variables or constants as...
Creating C formatted strings (not printing them)
...;
if(0 > asprintf(&string, "Formatting a number: %d\n", 42)) return error;
log_out(string);
free(string);
This is the minimum effort you can get to construct the string in a secure fashion. The sprintf() code you gave in the question is deeply flawed:
There is no allocated memory behind t...
Check if a value is within a range of numbers
...vertheless.
– Alexander
Sep 7 at 21:05
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...
Is it possible to create static classes in PHP (like in C#)?
...uctor automatically (if you try and call self::__construct() you'll get an error).
Therefore you'd have to create an initialize() function and call it in each method:
<?php
class Hello
{
private static $greeting = 'Hello';
private static $initialized = false;
private static functi...
GoogleTest: How to skip a test?
...d info! +1
– Kiril
Aug 26 '11 at 17:05
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Adding :default => true to boolean in existing Rails column
...ame is.
– labyrinth
Mar 6 '18 at 16:05
1
@labyrinth What do you mean? show_attribute is the name ...
Is it possible to make a type only movable and not copyable?
... the new struct or enum is itself Copy. If not, the compiler will print an error message. It can also only exist if the type doesn't have a Drop implementation.
To answer the question you didn't ask... "what's up with moves and copy?":
Firstly I'll define two different "copies":
a byte copy, w...
C++ display stack trace on exception
...
On the home page of StackTrace, I see throw stack_runtime_error. Am I correct in deducing that this lib only works for exceptions derived from that class, and not for std::exception or exceptions from third-party libraries?
– Thomas
Nov 15 '17 ...
What is the difference between return and return()?
...o these lines:
return 1;
var a = 1;
The reason return() throws a syntax error is for the exact reason the following line throws an error (return statement included for comparison):
return(); // SyntaxError: syntax error
var a = (); // SyntaxError: syntax error
...