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Why do we need C Unions?
...nt i;
float f;
} u;
// Convert floating-point bits to integer:
u.f = 3.14159f;
printf("As integer: %08x\n", u.i);
Although this is technically undefined behavior according to the C standard (you're only supposed to read the field which was most recently written), it will act in a well-defined m...
What are all the common undefined behaviours that a C++ programmer should know about? [closed]
...amount greater than or equal to the number of bits in the number (e.g. int64_t i = 1; i <<= 72 is undefined)
Types, Cast and Const
Casting a numeric value into a value that can't be represented by the target type (either directly or via static_cast)
Using an automatic variable before it has ...
Replace all 0 values to NA
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edited Aug 19 '18 at 20:43
answered Jun 14 '12 at 16:09
J...
How can I use “sizeof” in a preprocessor macro?
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edited Jan 4 '19 at 14:42
Henrik Juul Pedersen
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answered Aug 29 '13 at...
Quickly find whether a value is present in a C array?
...ical ISR that needs to iterate through an array of size 256 (preferably 1024, but 256 is the minimum) and check if a value matches the arrays contents. A bool will be set to true is this is the case.
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How to delete a cookie?
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answered Jan 27 '10 at 3:34
ACPACP
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Stop and Start a service via batch or cmd file?
...
348
Use the SC (service control) command, it gives you a lot more options than just start & sto...
How to cherry-pick multiple commits
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answered Oct 14 '10 at 13:08
Eric DarchisEric Darchis
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Mercurial error: abort no username supplied
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94
Solution:
On my Windows install, the Mercurial.ini did not get propagated. It also needs a user...
Why can't I use float value as a template parameter?
...n - refp
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answered Feb 2 '10 at 9:54
anonanon
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