[clang-format] Unnecessary extra spaces around template brackets

[carlosgalvezp]

When bumping from clang-format 18.1.8 to 19.1.1 we notice this change in formatting:

$ cat test.cpp
auto x = std::conditional_t<T::value == U::value, T, U>{};

$ clang-format-19 test.cpp
auto x = std::conditional_t < T::value == U::value, T, U > {};

Notice the extra spaces around the < and >. This happens with default configuration (no .clang-format file). This is also happening in main:
https://godbolt.org/z/9nv3js7qe

[llvmbot]

@llvm/issue-subscribers-clang-format

Author: Carlos Galvez (carlosgalvezp)

When bumping from clang-format 18.1.8 to 19.1.1 we notice this change in formatting:

$ cat test.cpp
auto x = std::conditional_t<T::value == U::value, T, U>{};

$ clang-format-19 test.cpp
auto x = std::conditional_t < T::value == U::value, T, U > {};

Notice the extra spaces around the < and >. This happens with default configuration (no .clang-format file). This is also happening in main:
https://godbolt.org/z/9nv3js7qe

[carlosgalvezp]

Thanks for quick the fix @owenca ! Is there any chance to cherrypick it into the 19.x branch?

[owenca]

/cherry-pick e5b05a5

[llvmbot]

Failed to cherry-pick: e5b05a5

https://github.com/llvm/llvm-project/actions/runs/11191943813

Please manually backport the fix and push it to your github fork. Once this is done, please create a pull request

[carlosgalvezp]

@owenca I see it failed to cherry-pick, was this handled elsewhere?

[owenca]

This will succeed after #111245 lands.

[carlosgalvezp]

Awesome, thanks!

[owenca]

/cherry-pick e5b05a5

[llvmbot]

/pull-request #111958