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What exactly does stringstream do?
...arn C++ since yesterday and I am using this document: http://www.cplusplus.com/files/tutorial.pdf (page 32) . I found a code in the document and I ran it. I tried inputting Rs 5.5 for price and an integer for quantity and the output was 0.
I tried inputting 5.5 and 6 and the output was correct.
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How to Turn Off Showing Whitespace Characters in Visual Studio IDE
...d -> View White Space
[BTW, it also appears you are using Tabs. It's common practice to have the IDE turn Tabs into spaces (often 4), via Options.]
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UTF-8: General? Bin? Unicode?
...ollation are faster than those for the _unicode_ci collation. For example, comparisons for the utf8_general_ci collation are faster, but slightly less correct, than comparisons for utf8_unicode_ci. The reason for this is that utf8_unicode_ci supports mappings such as expansions; that is, when one c...
What does git push origin HEAD mean?
...accident.
If you want to push a different branch than the current one the command will not work.
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How do I get the MIN() of two fields in Postgres?
...of any number of expressions. The expressions must all be convertible to a common data type, which will be the type of the result (see Section 10.5 for details). NULL values in the list are ignored. The result will be NULL only if all the expressions evaluate to NULL.
Note that GREATEST and LEA...
Is there a way to use two CSS3 box shadows on one element?
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You can comma-separate shadows:
box-shadow: inset 0 2px 0px #dcffa6, 0 2px 5px #000;
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How to sort with lambda in Python
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@SuperBiasedMan the error is not misleading. cmp, a comparator function takes two arguments. If you don't specify that you are passing a key, it is assumed from the function parameters order that you are passing a comparator. Your lambda takes one parameter, therefore is not a...
Boolean.hashCode()
...me numbers would do fine.
Why primes?
Suppose for a second that we picked composite numbers (non-primes), say 1000 and 2000. When inserting booleans into a hash table, true and false would go into bucket 1000 % N resp 2000 % N (where N is the number of buckets).
Now notice that
1000 % 8 same bu...
Why does pthread_cond_wait have spurious wakeups?
...sound strange, but on some multiprocessor systems, making condition wakeup completely predictable might substantially slow all condition variable operations.
In the following comp.programming.threads discussion, he expands on the thinking behind the design:
Patrick Doyle wrote:
> In article ...