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Single quotes vs. double quotes in C or C++
...ontaining a character or escape
sequence that does not map to a
single-byte execution character, is
implementation-defined."
This could look like this, for instance:
const uint32_t png_ihdr = 'IHDR';
The resulting constant (in GCC, which implements this) has the value you get by taking ea...
How do you 'redo' changes after 'undo' with Emacs?
...that "Emacs has redo because you can reverse direction while undoing, thereby undoing the undo".
9 Answers
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How can I create a unique constraint on my column (SQL Server 2008 R2)?
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What does the “at” (@) symbol do in Python?
... of a decorator you can add some modified things that wouldn't be returned by a function normally.
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best way to preserve numpy arrays on disk
...ere also is the possibility to "pickle" directly into a compressed archive by doing:
import pickle, gzip, lzma, bz2
pickle.dump( data, gzip.open( 'data.pkl.gz', 'wb' ) )
pickle.dump( data, lzma.open( 'data.pkl.lzma', 'wb' ) )
pickle.dump( data, bz2.open( 'data.pkl.bz2', 'wb' ) )
Appendix...
“Uncaught TypeError: Illegal invocation” in Chrome
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Python module for converting PDF to text [closed]
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The answer given by @user3272884 works as of 5-1-2014
– jmunsch
May 2 '14 at 4:15
1
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Which is preferred: Nullable.HasValue or Nullable != null?
...
I did some research on this by using different methods to assign values to a nullable int. Here is what happened when I did various things. Should clarify what's going on.
Keep in mind: Nullable<something> or the shorthand something? is a struct f...
how does array[100] = {0} set the entire array to 0?
...
int main(void)
{
...
}
then it is the compiler that reserves the 100 0 bytes in the data segement of the program. In this case you could have omitted the initialiser.
If your array is auto, then it is another story.
int foo(void)
{
char array[100] = {0};
...
}
In this case at every call of ...
Update multiple rows in same query using PostgreSQL
...status;
select * from results_dummy;
-- THE update of multiple rows with/by different values
update results_dummy as rd
set status=new.status, updated_at=now()
from (select unnest(array[1,2,5]::int[]) as id,unnest(array['a`','b`','e`']::text[]) as status) as new
where rd.id=new.id;
select * fr...