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Is C++ context-free or context-sensitive?
...com/questions/163830/context-sensitive-grammar-for-the-copy-language .
If one were to attempt to write a context-sensitive (or unrestricted) grammar to parse C++, it would quite possibly fill the universe with scribblings. Writing a Turing machine to parse C++ would be an equally impossible underta...
Never seen before C++ for loop
...it's very different than the semi-colon, it lets you do multiple things in one section of the for loop (in this case, it initialized two variables). Last time I checked these unusual constructs weren't considered the most readable solution possible and may therefore be frowned-upon by some.
...
What's the best visual merge tool for Git? [closed]
...author is using?, the question is general enough to be of interest to everyone who looks for it. And 3-way diff is when you actually see 4 panes with test; merge-base/local/remote/result
– Evgeny
Jan 23 '11 at 13:16
...
How do I safely pass objects, especially STL objects, to and from a DLL?
...h all those hoops, nor is there a guarantee that a solution which works in one compiler release will work in the next.
Just create a plain C interface using extern "C", since the C ABI is well-defined and stable.
If you really, really want to pass C++ objects across a DLL boundary, it's technica...
What's the Point of Multiple Redis Databases?
... separate databases as I sometimes need to make use of the keys command on one specific kind of data, and wanted to separate it to make that faster.
...
Switch on Enum in Java [duplicate]
... on an enum type, then instead of writing a switch, just call the method - one line of code: done!
enum MyEnum {
SOME_ENUM_CONSTANT {
@Override
public void method() {
System.out.println("first enum constant behavior!");
}
},
ANOTHER_ENUM_CONSTANT {
...
How to check if a column exists in a SQL Server table?
...
In Martin Smith's version, one thing to mention is not to include columnName within square brackets [ ]. When columnName is inside square brackets [ ], it'll give null even if the column exists in the table
– Hemendra
...
Validate that a string is a positive integer
...ately represent which parses as closer to a different value than the given one (which includes many integers over 9,007,199,254,740,992; for instance, 1234567890123456789 will fail). The former is an easy fix, the latter two not so much.
Regular Expression
The other approach is to test the charact...
Difference between local and global indexes in DynamoDB
...h+range6.
You get 5 more range attributes to query on.
Also, there is only one provisioned throughput.
Global Secondary Indexes defines a new paradigm - different hash/range keys per index.
This breaks the original usage of one hash key per table.
This is also why when defining GSI you are required...
How to convert string into float in JavaScript?
...(values[1])
If they're meant to be a single value (like in French, where one-half is written 0,5)
var value = parseFloat("554,20".replace(",", "."));
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