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Python try…except comma vs 'as' in except
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If you want to support all python versions you can use the sys.exc_info() function like this:
try:
a = 1/'0'
except (ZeroDivisionError, TypeError):
e = sys.exc_info()[1]
print(e.args[0])
(source:http://python3porting.com/noconv.html)
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How to get the number of Characters in a String?
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???????????? alone is one grapheme, but, from unicode to code points converter, 4 runes:
????: women (1f469)
dark skin (1f3fe)
ZERO WIDTH JOINER (200d)
????red hair (1f9b0)
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Convenient C++ struct initialisation
... @max: It will prevent it only if the types differ (even if they are convertible to each other), which is the OP situation. If it cannot distinguish the types, then of course it doesn't work, but that's a whole other question.
– Matthieu M.
Oct 13 '17 at ...
Hidden Features of C++? [closed]
...e type (i.e. no defaulted arguments) function1 and function2 are implictly converted to function pointers, and the result is implicitly converted back.
– MSalters
Nov 12 '10 at 15:49
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Recursive lambda functions in C++11
...0);
}
Trick here is that lambdas can access static variables and you can convert stateless ones to function pointer.
You can use it with standard lambdas:
void g()
{
int sum;
auto rec = [&sum](int i) -> int
{
static int (*inner)(int&, int) = [](int& _sum, int i...
How to get terminal's Character Encoding
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This is what worked for me on a CentOS system. It showed the system encoding based upon current language settings. The terminal settings used to get to that machine are a different story and a function of the client being used.
– Phil DD
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Linq: adding conditions to the where clause conditionally
...ses are optionally attached to it. The final Select is optional. I use to convert the database rows objects into result "Fruit" objects.
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LEFT OUTER JOIN in LINQ
...here you joined it. Suppose if those are of types string and int then just convert string key to int.
– Ankit
Jul 27 '16 at 9:35
2
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How large should my recv buffer be when calling recv in the socket library
... It doesn't really matter too much. If your protocol is a transactional / interactive one just pick a size that can hold the largest individual message / command you would reasonably expect (3000 is likely fine). If your protocol is transferring bulk data, then larger buffers can be more efficient...
How do you know a variable type in java?
...nceof String; will cause error error: incompatible types: Double cannot be converted to String
– Alex78191
Feb 20 at 18:48
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