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How to print a list of symbols exported from a dynamic library
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man 1 nm
https://web.archive.org/web/20160316222941/https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/nm.1.html
For example:
nm -gU /usr/local/Cellar/cairo/1.12.16/lib/cairo/libcairo-trace.0.dylib
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Sorting Python list based on the length of the string
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205
When you pass a lambda to sort, you need to return an integer, not a boolean. So your code sho...
How can I find the length of a number?
...eparadox
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9
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if A vs if A is not None:
...peration bool(); should return False or True, or their integer equivalents 0 or 1. When this method is not defined, __len__() is called, if it is defined, and the object is considered true if its result is nonzero. If a class defines neither __len__() nor __nonzero__(), all its instances are conside...
Is there a faster/shorter way to initialize variables in a Rust struct?
...uct by giving only the non-default values:
let p = cParams { iInsertMax: 10, ..Default::default() };
With some minor changes to your data structure, you can take advantage of an automatically derived default implementation. If you use #[derive(Default)] on a data structure, the compiler will auto...
Conveniently Declaring Compile-Time Strings in C++
...ng to match the elegance of Scott Schurr's str_const presented at C++ Now 2012. It does require constexpr though.
Here's how you can use it, and what it can do:
int
main()
{
constexpr str_const my_string = "Hello, world!";
static_assert(my_string.size() == 13, "");
static_assert(my_st...
HTML/CSS: Make a div “invisible” to clicks?
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answered Aug 21 '10 at 19:43
Ionuț G. StanIonuț G. Stan
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What's the difference between eval, exec, and compile?
... as an expression, so it really does not return anything).
In versions 1.0 - 2.7, exec was a statement, because CPython needed to produce a different kind of code object for functions that used exec for its side effects inside the function.
In Python 3, exec is a function; its use has no effect ...
Convert hex to binary
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108
For solving the left-side trailing zero problem:
my_hexdata = "1a"
scale = 16 ## equals to ...