[libc] Fix size_t used without including stddef.h in CPP/limit.h.

[lntue]

No description provided.

[llvmbot]

@llvm/pr-subscribers-libc

Author: None (lntue)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/78861.diff

1 Files Affected:

• (modified) libc/src/__support/CPP/limits.h (+1-1)

diff --git a/libc/src/__support/CPP/limits.h b/libc/src/__support/CPP/limits.h
index e92ad00f80e037..d9e7090a0b7b19 100644
--- a/libc/src/__support/CPP/limits.h
+++ b/libc/src/__support/CPP/limits.h
@@ -20,7 +20,7 @@ namespace cpp {
 
 // Some older gcc distributions don't define these for 32 bit targets.
 #ifndef LLONG_MAX
-constexpr size_t LLONG_BIT_WIDTH = sizeof(long long) * 8;
+constexpr unsigned int LLONG_BIT_WIDTH = sizeof(long long) * 8;
 constexpr long long LLONG_MAX = ~0LL ^ (1LL << (LLONG_BIT_WIDTH - 1));
 constexpr long long LLONG_MIN = 1LL << (LLONG_BIT_WIDTH - 1);
 constexpr unsigned long long ULLONG_MAX = ~0ULL;

[jhuber6]

Yeah, no point worrying about capacity here for a compile time constant.