(C++) Integer literals with quote delimiters in preprocessor highlighted wrong
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Description
Information
- Language: C++
Description
In C++, you can use the digit separator ' to define large numbers in a more readable way. For example, you can define 1'000'000 as follows:
Code snippet
#define MILLION 1'000'000
The code is being highlighted incorrectly.
# include<iostream>
# define INF 1'000'000
int main(){
std::cout<<"Hello World";
int x = 1'000'000;
}
[Proposed labels]:
- good first issue
- help-wanted
- bug
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- Open a pull request that references the issue number.
Research direction
Start with the linked Prism test page using the C++ example and compare highlighting for the preprocessor definition #define INF 1'000'000. Trace the C++ grammar entry point responsible for numeric literals and verify that the quoted integer is highlighted as one literal without changing other C++ syntax.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp, javascript
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 55/100