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How do C++ class members get initialized if I don't do it explicitly?

Suppose I have a class with private memebers ptr , name , pname , rname , crname and age . What happens if I don't initialize them myself? Here is an example: ...
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How to convert a PNG image to a SVG? [closed]

How to convert a PNG image to a SVG? 15 Answers 15 ...
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What is this operator in MySQL?

I'm working on code written by a previous developer and in a query it says, 9 Answers ...
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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table

I'm having a little trouble understanding the pass-by-reference properties of data.table . Some operations seem to 'break' the reference, and I'd like to understand exactly what's happening. ...
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Why use apparently meaningless do-while and if-else statements in macros?

In many C/C++ macros I'm seeing the code of the macro wrapped in what seems like a meaningless do while loop. Here are examples. ...
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How to make a button redirect to another page using jQuery or just Javascript

I am making a prototype and I want the search button to link to a sample search results page. 15 Answers ...
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const char * const versus const char *?

I'm running through some example programs to refamiliarize myself with C++ and I have run into the following question. First, here is the example code: ...
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Getting a slice of keys from a map

Is there any simpler/nicer way of getting a slice of keys from a map in Go? 6 Answers ...
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Random number from a range in a Bash Script

I need to generate a random port number between 2000-65000 from a shell script. The problem is $RANDOM is a 15-bit number, so I'm stuck! ...
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How to search for a part of a word with ElasticSearch

I've recently started using ElasticSearch and I can't seem to make it search for a part of a word. 10 Answers ...