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C++ preprocessor __VA_ARGS__ number of arguments

...VA_ARGS__), __VA_ARGS__)) void sum(int numargs, ...); int main(int argc, char *argv[]) { SUM(1); SUM(1, 2); SUM(1, 2, 3); SUM(1, 2, 3, 4); return 1; } void sum(int numargs, ...) { int total = 0; va_list ap; printf("sum() called with %d params:", numargs); ...
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How do I set a variable to the output of a command in Bash?

...-expanded before being passed to the echo command. – Charles Duffy Apr 21 '15 at 15:37 4 ...
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Where can I find the IIS logs?

... %SystemDrive%\inetpub\logs\LogFiles Otherwise, check under IIS Manager, select the computer on the left pane, and in the middle pane, go under "Logging" in the IIS area. There you will se the default location for all sites (this is however overridable on all sites) You could also look into %Sy...
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How to find duplicates in 2 columns not 1

..._title for each row. As far as finding the existing duplicates try this: select stone_id, upcharge_title, count(*) from your_table group by stone_id, upcharge_title having count(*) > 1 ...
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Is there a performance difference between i++ and ++i in C++?

...ata() { return myData; } private: int myData; }; int main(int argc, char* argv[]) { Foo testFoo; int count; printf("Enter loop count: "); scanf("%d", &count); for(int i=0; i<count; i++) { testFoo++; } printf("Value: %d\n", testFoo.GetData()); ...
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Difference between UTF-8 and UTF-16?

... Both UTF-8 and UTF-16 are variable length encodings. However, in UTF-8 a character may occupy a minimum of 8 bits, while in UTF-16 character length starts with 16 bits. Main UTF-8 pros: Basic ASCII characters like digits, Latin characters with no accents, etc. occupy one byte which is identical...
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How do I edit an incorrect commit message with TortoiseGit?

...to reset, amend and cherry-pick Context menu -> TortoiseGit -> Log Select the commit -> Context menu -> Reset Hard Reset (this will discard all work contained in commits above the selected commit as well as any un-committed changes in the working directory) OK Follow above 1-4 steps to...
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How to stop Eclipse formatter from placing all enums on one line

...indow > Preferences > Java > Code Style > Formatter Click Edit Select the Line Wrapping tab Select the enum declaration treenode Set Line wrapping policy to Wrap all elements, every element on a new line (...) so it now says 3 of 3 in the parenthesis. Uncheck Force split, even if line sh...
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app-release-unsigned.apk is not signed

...ettings. Go to Signing Tab. Add a signing config and fill in information. Select your keychain as well. Go to Build Type tab. Select release mode and set: -Debuggable to true. -Signing Config to the config. (The one you just created). Sync your gradle. Enjoy! ...
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sqlalchemy: how to join several tables by one query?

...sn't do a join at all" - that's a little misleading. It will have sql like select x from a, b ,c which is a cross join. The filters then make it an inner join. – Aidan Kane Sep 12 '16 at 13:04 ...