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c++ Programming Glossary: enabledPurpose of Trigraph sequences in C++? http://stackoverflow.com/questions/1234582/purpose-of-trigraph-sequences-in-c
Are function static variables thread-safe in GCC? http://stackoverflow.com/questions/1270927/are-function-static-variables-thread-safe-in-gcc is thread safe. You definitely want to leave this feature enabled. Thread safe initialization of local static s is very important...
Turn off eclipse errors (that arent really errors) [duplicate] http://stackoverflow.com/questions/14131939/turn-off-eclipse-errors-that-arent-really-errors parts of the code don't change but still leave them enabled in general. Actually the best would be a plugin for Eclipse..
Why doesn't C++ have a garbage collector? http://stackoverflow.com/questions/147130/why-doesnt-c-have-a-garbage-collector hoped that a garbage collector which could be optionally enabled would be part of C 0x but there were enough technical problems..
http://stackoverflow.com/questions/1610030/why-can-you-return-from-a-non-void-function-without-returning-a-value-without-pr in a function whose return type is void. This warning is enabled by Wall . Just as a curiosity. Look what this code does 1 #include..
Dead code detection in legacy C/C++ project http://stackoverflow.com/questions/229069/dead-code-detection-in-legacy-c-c-project If you use gcc you can compile with gcov support which is enabled by the ' coverage' flag. Next run your application or run your.. run your application or run your test suite with this gcov enabled build. Basically gcc will emit some extra files during compilation..
How to set a timeout on blocking sockets in boost asio? http://stackoverflow.com/questions/291871/how-to-set-a-timeout-on-blocking-sockets-in-boost-asio supported by the operating system. The option can be enabled via setsocktopt . I don't know if boost asio provides a method..
Why can't I have a non-integral static const member in a class? http://stackoverflow.com/questions/370283/why-cant-i-have-a-non-integral-static-const-member-in-a-class since you're not optimizing anyways but with optimizations enabled this can hurt performance since the compiler can no longer inline..
Is it possible to program for Windows Phone 7 in standard C++ only? http://stackoverflow.com/questions/4539876/is-it-possible-to-program-for-windows-phone-7-in-standard-c-only emulator you'll need a 64 bit Windows 8 box with a SLAT enabled CPU. The nongame UI however will still be XAML based and managed...
http://stackoverflow.com/questions/500493/c-equivalent-of-instanceof This requires your compiler to have rtti support enabled. EDIT I've had some good comments on this answer Every time.. virtual function call. It also works regardless of RTTI is enabled or not. Note that this approach doesn't support multiple levels..
Cross-platform way to get line number of an INI file where given option was found http://stackoverflow.com/questions/8358975/cross-platform-way-to-get-line-number-of-an-ini-file-where-given-option-was-foun Errors are also reported with full position info if enabled NOTE C 11 support is NOT required but I used it to dump the..
Why is one loop so much slower than two loops? http://stackoverflow.com/questions/8547778/why-is-one-loop-so-much-slower-than-two-loops on MS Visual C 10.0 with full optimization and SSE2 enabled for 32 bit on a Intel Core 2 Duo x64 the first example takes..
What is the difference between _tmain() and main() in C++? http://stackoverflow.com/questions/895827/what-is-the-difference-between-tmain-and-main-in-c character set they've defined _tmain which if Unicode is enabled is compiled as wmain and otherwise as main . As for the second.. UTF 16 the character set used by Windows when Unicode is enabled all the ASCII characters are represented as the pair of bytes..
Image scaling (KeepAspectRatioByExpanding) through OpenGL http://stackoverflow.com/questions/9011108/image-scaling-keepaspectratiobyexpanding-through-opengl painter.paintEngine type QPaintEngine OpenGL2 disabled enabled QGLContext context const_cast QGLContext QGLContext currentContext.. painter.paintEngine type QPaintEngine OpenGL2 disabled enabled QGLContext context const_cast QGLContext QGLContext currentContext.. break glDisable GL_CULL_FACE might cause problems if enabled glBegin GL_QUADS glTexCoord2f 0 0 glVertex2f offset_x offset_y..
Why does changing 0.1f to 0 slow down performance by 10x? http://stackoverflow.com/questions/9314534/why-does-changing-0-1f-to-0-slow-down-performance-by-10x faster. This requires that the code be compiled with SSE enabled. This means that rather than using these weird lower precision..
What can cause D3D11CreateDevice() to fail with E_FAIL? http://stackoverflow.com/questions/10586956/what-can-cause-d3d11createdevice-to-fail-with-e-fail Overlay Not Supported DXVA HD Not Supported DDraw Status Enabled D3D Status Enabled AGP Status Enabled Card name ATI Radeon HD.. DXVA HD Not Supported DDraw Status Enabled D3D Status Enabled AGP Status Enabled Card name ATI Radeon HD 5670 Manufacturer.. DDraw Status Enabled D3D Status Enabled AGP Status Enabled Card name ATI Radeon HD 5670 Manufacturer Advanced Micro Devices..
reason why custom loop is faster? bad compiler? unsafe custom code? luck?(lucky cache hits) http://stackoverflow.com/questions/11529778/reason-why-custom-loop-is-faster-bad-compiler-unsafe-custom-code-lucklucky C 's asm body with Digital Mars compiler in C Free 5.0 Enabled the o optimization And got the results time of for loop cycles..
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