Mirrors/modern-cpp-features
1
0
Fork 0
mirror of https://github.com/AnthonyCalandra/modern-cpp-features.git synced 2025-12-16 17:47:02 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

Fix formatting issues with __VA_OPT__.

Browse Source
This commit is contained in:
Anthony Calandra
2024-10-12 22:56:34 -04:00
parent bbc4ea3e3d
commit 0e192a5e56
2 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
CPP20.md
View File

@@ -19,7 +19,7 @@ C++20 includes the following new language features:
- [lambda capture of parameter pack](#lambda-capture-of-parameter-pack)
- [char8_t](#char8_t)
- [constinit](#constinit)
- [__VA_OPT__](#__VA_OPT__)
- [\_\_VA\_OPT\_\_](#__VA_OPT__)
C++20 includes the following new library features:
- [concepts library](#concepts-library)
@@ -450,7 +450,7 @@ constinit const char* c = f(true); // OK
constinit const char* d = g(false); // ERROR: `g` is not constexpr, so `d` cannot be evaluated at compile-time.
```
### `__VA_OPT__`
### \_\_VA\_OPT\_\_
Helps support variadic macros by evaluating to the given argument if the variadic macro is non-empty.
```c++
#define F(...) f(0 __VA_OPT__(,) __VA_ARGS__)