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std::wstring VS std::string

...hey are encoded in UTF-8. Is std::wstring supported by almost all popular C++ compilers? Mostly, with the exception of GCC based compilers that are ported to Windows. It works on my g++ 4.3.2 (under Linux), and I used Unicode API on Win32 since Visual C++ 6. What is exactly a wide character? On C...
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Dealing with multiple Python versions and PIP?

.../1053 for more details References: https://github.com/pypa/pip/issues/200 http://www.pip-installer.org/docs/pip/en/0.8.3/news.html#id4 share | improve this answer | fol...
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How do I create a basic UIButton programmatically?

... Correct, there are better approaches now than there were in 2009. – Jason Jul 31 '13 at 19:47 add a comment  |  ...
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How did I get a value larger than 8 bits in size from an 8-bit integer?

...extremely nasty bug hiding behind this little gem. I am aware that per the C++ spec, signed overflows are undefined behavior, but only when the overflow occurs when the value is extended to bit-width sizeof(int) . As I understand it, incrementing a char shouldn't ever be undefined behavior as lon...
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How to set size for local image using knitr for markdown?

...the image: Wrap the image in div tags <div style="width:300px; height:200px"> ![Image](path/to/image) </div> Use a stylesheet test.Rmd --- title: test output: html_document css: test.css --- ## Page with an image {#myImagePage} ![Image](path/to/image) test.css #myImagePage img...
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How do I check if file exists in jQuery or pure JavaScript?

...tus!=404; } Small changes and it could check for status HTTP status code 200 (success), instead. EDIT 2: Since sync XMLHttpRequest is deprecated, you can add a utility method like this to do it async: function executeIfFileExist(src, callback) { var xhr = new XMLHttpRequest() xhr.onready...
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Why does auto a=1; compile in C?

...gned d; // actually unsigned int which is still common in modern code. C++11 reused the keyword, which few if any C++ programmers were using with the original meaning, for its type inference. This is mostly safe because the "everything is int" rule from C had already been dropped in C++98; the o...
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How can I profile C++ code running on Linux?

I have a C++ application, running on Linux, which I'm in the process of optimizing. How can I pinpoint which areas of my code are running slowly? ...
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Run an Application in GDB Until an Exception Occurs

...to cause the debugger to stop for certain kinds of program events, such as C++ exceptions or the loading of a shared library. Use the catch command to set a catchpoint. catch event Stop when event occurs. event can be any of the following: throw The throwing of a C++ exception. catch ...
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“Unresolved inclusion” error with Eclipse CDT for C standard library headers

...in several sections for the compiler: Adding include paths and symbols C/C++ Project Properties, Paths and Symbols, Includes And if the code-completion/indexer or preprocessor specifically also cannot locate stdio.h: Setting up include paths and macros for C/C++ indexer C/C++ Project propertie...