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Is there a simple way to convert C++ enum to string?

... X-macros are the best solution. Example: #include <iostream> enum Colours { # define X(a) a, # include "colours.def" # undef X ColoursCount }; char const* const colours_str[] = { # define X(a) #a, # include "colours.def" # undef X 0 }; st...
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Why does changing 0.1f to 0 slow down performance by 10x?

...ent environments: Might not work in some GCC environments: // Requires #include <fenv.h> fesetenv(FE_DFL_DISABLE_SSE_DENORMS_ENV); Might not work in some Visual Studio environments: 1 // Requires #include <xmmintrin.h> _mm_setcsr( _mm_getcsr() | (1<<15) | (1<<6) ); // Do...
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Creating a CSS3 box-shadow on all sides but one

...); } This will clip the div in question at: 8 pixels above the top (to include the shadow) 8 pixels outside of the right edge (to include the shadow) 0 pixels from the bottom (to hide the shadow) 8 pixels outside of the left edge (to include the shadow) Note that no commas are required between...
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Remove unwanted parts from strings in a column

...Ns or no-matches are a possibility, you will need to re-write the above to include some error checking. I do this using a function. def try_extract(pattern, string): try: m = pattern.search(string) return m.group(0) except (TypeError, ValueError, AttributeError): ret...
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Is it possible to declare git repository as dependency in android gradle?

...ike this $ git submodule add my_sub_project_git_url my-sub-project Then include the project in your settings.gradle file which should look like this include ':my-app', ':my-sub-project' Finally, compile the project as a dependency in your application build.gradle file like this dependencies {...
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How to permanently set $PATH on Linux/Unix? [closed]

...s that are valid for every user like /usr/local/something/bin. The file is included by other script so use POSIX shell syntax not the syntax of your user shell. /etc/profile and /etc/profile.d/* Shell script. This is a good choice for shell-only systems. Those files are read only by shells in login ...
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In-Place Radix Sort

...to fit within your working set. Here is a hack that shows the technique #include <iostream> #include <iomanip> #include <math.h> using namespace std; const int width = 3; const int bucketCount = exp(width * log(4)) + 1; int *bucket = NULL; const char charMap[4] = {'A', ...
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How to switch a user per task or set of tasks?

...calation. You can apply them to an entire play or playbook, set them in an included playbook, or set them for a particular task. - name: checkout repo git: repo=https://github.com/some/repo.git version=master dest={{ dst }} become: yes become_user: some_user You can use become_with to speci...
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Make .git directory web inaccessible

...a 3rd maybe worst of all: the quote(Make .git directory web inaccessible), including how its done when & by whom, is small but still key to the data (esp for its security, including analysis when & before not properly done) BUT in .git/ it is NOT really part of the data proper (including ver...
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Practical usage of setjmp and longjmp in C

...omment of MikeMB; though I have not yet had opportunity to verify that). #include <stdio.h> #include <setjmp.h> jmp_buf bufferA, bufferB; void routineB(); // forward declaration void routineA() { int r ; printf("(A1)\n"); r = setjmp(bufferA); if (r == 0) routineB()...