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How to initialise memory with new operator in C++?
I'm just beginning to get into C++ and I want to pick up some good habits. If I have just allocated an array of type int with the new operator, how can I initialise them all to 0 without looping through them all myself? Should I just use memset ? Is there a “C++” way to do it?
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How to get the list of files in a directory in a shell script?
I'm trying to get the contents of a directory using shell script.
10 Answers
10
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Possible to make labels appear when hovering over a point in matplotlib?
I am using matplotlib to make scatter plots. Each point on the scatter plot is associated with a named object. I would like to be able to see the name of an object when I hover my cursor over the point on the scatter plot associated with that object. In particular, it would be nice to be able to qui...
How do you echo a 4-digit Unicode character in Bash?
I'd like to add the Unicode skull and crossbones to my shell prompt (specifically the 'SKULL AND CROSSBONES' (U+2620)), but I can't figure out the magic incantation to make echo spit it, or any other, 4-digit Unicode character. Two-digit one's are easy. For example, echo -e "\x55", .
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What are some better ways to avoid the do-while(0); hack in C++?
When the code flow is like this:
27 Answers
27
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How do I create an array of strings in C?
I am trying to create an array of strings in C. If I use this code:
14 Answers
14
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Embed SVG in SVG?
I have an SVG document, and I would like to include an external svg image within it, i.e. something like:
6 Answers
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How do I concatenate const/literal strings in C?
I'm working in C, and I have to concatenate a few things.
17 Answers
17
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javascript i++ vs ++i [duplicate]
In javascript I have seen i++ used in many cases, and I understand that it adds one to the preceding value:
8 Answers
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