Using template without an argument type
A program I'm working on seems to have a lot of functions like this in its header files:- Code: template <> inline std::string to_string (bool val) { std::string tmp;...
View ArticleTryong to understand templates
I'm investigating a problem here when using boost::intrusive::list with templates but to get me started I wrote this small app (which works):- Code: #include <boost/intrusive/list.hpp> #include...
View ArticleControl PDF from c ++
I wanted to put the PDF file on one page. When opening with "# page = 123" or "/ A page = 123" in the path or as a parameter in ShellExecute does not work. How could you do that when PDF is already...
View ArticleVS2019 - Debugging without the exact code
In previous versions of VS I could press F5 to start a Debug session and if the code had changed slightly it'd give me the option to rebuild or not rebuild - but VS2019 always rebuilds without giving...
View ArticleSome code I don't understand
I'm not sure if it's C++11 maybe but I just came across this line of code in a class declaration:- Code: explicit timepos_t (samplepos_t s) : int62_t (false, samples_to_superclock (s,...
View ArticleDoes a static class var work in a static lib ?
Consider the following code. Obviously the class is intended to get exported from a DLL - so there'll only ever be 1 x copy of some_var:- Code: class __declspec(dllexport) whatever { public:...
View ArticleIs there a function intended to split strings by a delimiter in VC++?
Even if not part of the official C++ standard, does MS VC++ have any functions designed to split a C++ string (variable of type std::string) into an array of strings, where each entry of that array is...
View Article#warning and MSVC
AFAICT it's not supported in MSVC but it seems to be much more common now for 3rd-party source code to contain #warning message lines. Is there any way they can be converted into something that'll work...
View ArticleHow to not display a UI?
Hi, ALL, MSDN at this link states that there is a flag Quote: CMIC_MASK_FLAG_NO_UI The system is prevented from displaying user interface elements (for example, error messages) while carrying out a...
View ArticleCreating a popup window above an another.
I have a `handle` to third party window (not created by me, retrieved using the `FindWindow` function). Now I'd kile to create a small popup style window that will ALWAYS be laid down ovev/on top of...
View ArticleTRACE MACRO problem in MFC
I'm able to see the data via watch list and cursor over var but unable to print the data via TRACE using specifiers %lf or any other specifiers the results keep showing 0.000000 I even set the var to a...
View Articlewait .. no blocking
need examples of a proper way to wait for a flag change in another thread without blocking the events?. In C++/windows.
View ArticleIDC resource
I hope someone have experience with this problem and have a quick answer. I have a Microsoft Visual C++ 17 application that I am adding a new select button to an existing dialog resource. I am adding a...
View ArticleMFC CRectTracker
Hi, I am trying to develop a MFC application that lets a user upload a photo and display it, and then the user will select a rectangular region of this photo and get its coordinates in pixel values. I...
View ArticleIs it safe to locally use arrays, vectors and calloc when multi-threading
Hi everyone, I have a question about working with threads. Is it safe to work with locally assigned memory, such as arrays, vectors and memory temporarily created with calloc (or a simillar alloc...
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Why is my single thread code is faster than my multhread code?
Just tried to implement multithreading rendering with vulkan and the result is dissappointing that multithreading code is 4x slower than singlethread. Tried multithreading on my cpu ray tracer code and...
View ArticleFloat point number simple arithmetic.
Having such a simple `c` program: Code: #include <stdio.h> #include <float.h> int main( void ) { float fl1 = 0.1; //...
View ArticleSudden problem with std::vector
Code: uint32_t some_func() { return 32; } int buf_1[32]; // <--- this always compiled with MSVC int buf_2[some_func()]; // <--- whereas this fails because the buffer size needs to be...
View ArticleI'm new in Golang
Hello. I want to start studying the Golang language but I can't find any IDE that I can configure well, can you tell me an IDE that is good for Go and how to configure it (explained for fools in...
View ArticleOcccont.cpp error when migrating old VS2005 application to Visual Studio
I am updating an application originally built in 2007 with Visual Studio 2022. I've made a few minor changes to get the program to compile successfully, but when I run the program it generates an...
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