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Is gcc's __attribute__((packed)) / #pragma pack unsafe?
In C, the compiler will lay out members of a struct in the order in which they're declared, with possible padding bytes inserted between members, or after the last member, to ensure that each member is aligned properly.
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Stack, Static, and Heap in C++
I've searched, but I've not understood very well these three concepts. When do I have to use dynamic allocation (in the heap) and what's its real advantage? What are the problems of static and stack? Could I write an entire application without allocating variables in the heap?
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Compiling simple Hello World program on OS X via command line
I've got a simple hello world example that I'm trying to compile on OS X, named hw.cpp :
8 Answers
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What is the difference between quiet NaN and signaling NaN?
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Using unset vs. setting a variable to empty
...work, where in a test function, both standard bash tests ( [[ ) as well as predefined matchers can be used. Matchers are wrappers to '[[' and besides returning a return code, set some meaningful message saying what was expected.
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HTML+CSS: How to force div contents to stay in one line?
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Try this:
div {
border: 1px solid black;
width: 70px;
overflow: hidden;
white-space: nowrap;
}
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Is there a short cut for going back to the beginning of a file by vi editor?
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After opening a file using vi
1) You can press Shift + g to go the end of the file
and
2) Press g twice to go to the beginning of the file
NOTE : - g is case-sensitive (Thanks to @Ben for pointing it out)
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How to printf uint64_t? Fails with: “spurious trailing ‘%’ in format”
I wrote a very simple test code of printf uint64_t:
3 Answers
3
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How to get the number of days of difference between two dates on mysql?
I need to get the number of days contained within a couple of dates on MySQL.
6 Answers
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What is the difference between trie and radix trie data structures?
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