VS Arduino - Problem with using C++ template for generic types in *.ino files (VS 2019)

Apr 20^th, 2024 at 2:02am (UTC)

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VS Arduino › › › Problem with using C++ template for generic types in *.ino files (VS 2019)

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Problem with using C++ template for generic types in *.ino files (VS 2019) (Read 1506 times)

Someguy Newbies Offline Posts: 3 Joined: Aug 30^th, 2020	*Problem with using C++ template for generic types in .ino files (VS 2019)** Aug 30^th, 2020 at 5:03pm	Print Post
	Hi all, I have purchase a license for VisualMicro so I could do some hardware debugging with my Arduino DUE. So far everything is great. However, today I encountered some weird issues with VisualMicro. This sketch can't be complied in VisualMicro but compile in Arduino IDE just fine. It also seems that many template declaration approach yields similar result. It can only be fixed by moving "someFunc" to a seperate Header.h template <class T> void someFunc(T& result) { } void setup() { } void loop() { byte result = 0; someFunc(result); } Here is compile message from VisalMicro on Visual Studio 2019 Compiling debug version of 'Sketch2' for 'ATmega2560 (Mega 2560) (Arduino Mega)' Sketch2.ino: 5:11: error: declaration of template parameter 'T' shadows template parameter Sketch2.ino:3: note template parameter T declared here template <class T> ^~~~~ Sketch2.ino: 5:24: error: too many template-parameter-lists Sketch2.ino: 4:15: error: variable or field 'someFunc' declared void void someFunc(T& result) { Sketch2.ino: 4:15: error: 'T' was not declared in this scope Sketch2.ino: 4:18: error: 'result' was not declared in this scope void someFunc(T& result) { ^~~~~~ Sketch2.ino: In function void loop() Sketch2.ino: 14:1: error: 'someFunc' was not declared in this scope someFunc(result) ^ ~~~~ Error compiling project sources Debug build failed for project 'Sketch2' It is a little inconvenience ? Has anyone encounter similar issues ? Thank everyone so much ! Quick update: It also seems that moving 'someFunc' to a seperate *.ino file works too.
	« Last Edit: Aug 30^th, 2020 at 5:13pm by Someguy »

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Someguy Newbies Offline Posts: 3 Joined: Aug 30^th, 2020	*Re: Problem with using C++ template for generic types in .ino files (VS 2019) Reply #1 -** Aug 30^th, 2020 at 5:23pm	Print Post
	Second update: It works if I move 'someFunc' below setup(). I guess it's just a minor bug. void setup() { } template <class T> void someFunc(T& result) { } void loop() { byte result = 0; someFunc<byte>(result); }


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Simon@Visual Micro Administrator Offline Posts: 2174 Joined: Feb 13^th, 2019	*Re: Problem with using C++ template for generic types in .ino files (VS 2019) Reply #2 -** Sep 2^nd, 2020 at 6:35pm	Print Post
	In the latest forum release (20.07.08.13) this issue should now be resolved, and it can be downloaded from the top of the below board: https://www.visualmicro.com/forums/YaBB.pl?board=VS_ARDUINO_EXT_RELEASES If you haven't installed one of the forum releases before, further help is below: Documentation - See Section 2. Install Visual Micro Walkthrough Video on YouTube Let us know if you encounter any further issues, and thanks again for the clear reporting.


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Ridge_glider Newbies Offline Posts: 1 Joined: Sep 1^st, 2020	*Re: Problem with using C++ template for generic types in .ino files (VS 2019) Reply #3 -** Sep 2^nd, 2020 at 9:01pm	Print Post
	I had a similar problem with templates that rearranging the function order as 'Someguy' suggested did not cure. However, the new release seems to solve it. Thanks!


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Someguy Newbies Offline Posts: 3 Joined: Aug 30^th, 2020	*Re: Problem with using C++ template for generic types in .ino files (VS 2019) Reply #4 -** Sep 5^th, 2020 at 8:02am	Print Post
	Thank you all! Everything seem working properly in latest version.


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