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Pinging servers in Python
In Python, is there a way to ping a server through ICMP and return TRUE if the server responds, or FALSE if there is no response?
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What are good grep tools for Windows? [closed]
Any recommendations on grep tools for Windows? Ideally ones that could leverage 64-bit OS.
28 Answers
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How to Execute a Python File in Notepad ++?
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What is array to pointer decay?
What is array to pointer decay? Is there any relation to array pointers?
9 Answers
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Move assignment operator and `if (this != &rhs)`
In the assignment operator of a class, you usually need to check if the object being assigned is the invoking object so you don't screw things up:
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How to find gaps in sequential numbering in mysql?
...a table whose values were imported from another system. There is an auto-increment column, and there are no duplicate values, but there are missing values. For example, running this query:
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H2 in-memory database. Table not found
I've got a H2 database with URL "jdbc:h2:test" . I create a table using CREATE TABLE PERSON (ID INT PRIMARY KEY, FIRSTNAME VARCHAR(64), LASTNAME VARCHAR(64)); . I then select everything from this (empty) table using SELECT * FROM PERSON . So far, so good.
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How to filter a dictionary according to an arbitrary condition function?
I have a dictionary of points, say:
7 Answers
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How to use ng-repeat without an html element
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Is there a performance gain in using single quotes vs double quotes in ruby?
Do you know if using double quotes instead of single quotes in ruby decreases performance in any meaningful way in ruby 1.8 and 1.9.
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