[libc] Include FP_* macros in math.h

[petrhosek]

These are used unconditionally by libc++ math.h.

This is related to issue #84879.

[llvmbot]

@llvm/pr-subscribers-libc

Author: Petr Hosek (petrhosek)

Changes

These are used unconditionally by libc++ math.h.

This is related to issue #84879.

---

Full diff: https://github.com/llvm/llvm-project/pull/84996.diff

1 Files Affected:

• (modified) libc/include/llvm-libc-macros/math-macros.h (+6)

diff --git a/libc/include/llvm-libc-macros/math-macros.h b/libc/include/llvm-libc-macros/math-macros.h
index e67fe4d11b4493..db8a4ea65bd69a 100644
--- a/libc/include/llvm-libc-macros/math-macros.h
+++ b/libc/include/llvm-libc-macros/math-macros.h
@@ -11,6 +11,12 @@
 
 #include "limits-macros.h"
 
+#define FP_NAN 0
+#define FP_INFINITE 1
+#define FP_ZERO 2
+#define FP_SUBNORMAL 3
+#define FP_NORMAL 4
+
 #define MATH_ERRNO 1
 #define MATH_ERREXCEPT 2