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What does static_assert do, and what would you use it for?
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Isn't static_assert REQUIRED to have a string literal as a second parameter?
– Trevor Hickey
Dec 19 '13 at 16:56
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What is a reasonable length limit on person “Name” fields?
..., and take their names with them.
For example, Spanish people with those extra surnames can move to and live in an English-speaking country, and can reasonably expect their full name to be used. Russians have patronymics in addition to their surnames, some African names can be considerably longer ...
How to check if a char is equal to an empty space?
...e, so it can be compared with ==.
Also, by using double quotes you create String constant (" "), while with single quotes it's a char constant (' ').
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Fast permutation -> number -> permutation mapping algorithms
...algorithm is awesome, but I just found several cases to be wrong. Take the string "123"; the 4th permutation should be 231, but according to this algorithm, it will be 312. say 1234, the 4th permutation should be 1342, but it will be mistaken to be "1423". Correct me if I observed wrong. Thanks.
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How do you query for “is not null” in Mongo?
...roposition:
db.collection_name.find({"field_name":{$type:2}}) //type:2 == String
You can check on the required attribute's type, it will return all the documents that its field_name queried contains a value because you are checking on the filed's type else if it is null the type condition doesn't...
In Java, is there a way to write a string literal without having to escape quotes?
Say you have a String literal with a lot of quotation marks inside it. You could escape them all, but it's a pain, and difficult to read.
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How does one create an InputStream from a String? [duplicate]
...to working with streams in Java - how do I create an InputStream from a String ?
6 Answers
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How to convert an Int to a String of a given length with leading zeros to align?
How can I convert an Int to a 7-character long String , so that 123 is turned into "0000123" ?
7 Answers
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How can I check if character in a string is a letter? (Python)
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str.isalpha()
Return true if all characters in the string are alphabetic and there is at least one character, false otherwise. Alphabetic characters are those characters defined in the Unicode character database as “Letter”, i.e., those with general category property bein...
Formatting Numbers by padding with leading zeros in SQL Server
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This only works if the value passed in is a string, if you pass an integer you get out the same value you passed in.
– Mordy
Feb 13 '14 at 10:30
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