[libc++][modules] Remove dependency on __algorithm/max from hypot.h (#107150)

That dependency was added recently when we made improvements to
std::hypot, but that resulted in `__math` depending on `__algorithm`,
which is a very heavyweight module. This patch uses `__math::fmax`
instead.

libcxx/include/__math/hypot.h

@@ -9,10 +9,10 @@
 #ifndef _LIBCPP___MATH_HYPOT_H
 #define _LIBCPP___MATH_HYPOT_H
 
-#include <__algorithm/max.h>
 #include <__config>
 #include <__math/abs.h>
 #include <__math/exponential_functions.h>
+#include <__math/min_max.h>
 #include <__math/roots.h>
 #include <__type_traits/enable_if.h>
 #include <__type_traits/is_arithmetic.h>
@@ -62,7 +62,7 @@ _LIBCPP_HIDE_FROM_ABI _Real __hypot(_Real __x, _Real __y, _Real __z) {
   const _Real __overflow_scale     = __math::ldexp(_Real(1), -(__exp + 20));
 
   // Scale arguments depending on their size
-  const _Real __max_abs = std::max(__math::fabs(__x), std::max(__math::fabs(__y), __math::fabs(__z)));
+  const _Real __max_abs = __math::fmax(__math::fabs(__x), __math::fmax(__math::fabs(__y), __math::fabs(__z)));
   _Real __scale;
   if (__max_abs > __overflow_threshold) { // x*x + y*y + z*z might overflow
     __scale = __overflow_scale;

libcxx/test/libcxx/transitive_includes/cxx03.csv

@@ -131,8 +131,6 @@ chrono type_traits
 chrono vector
 chrono version
 cinttypes cstdint
-cmath cstddef
-cmath initializer_list
 cmath limits
 cmath type_traits
 cmath version

libcxx/test/libcxx/transitive_includes/cxx11.csv

@@ -131,8 +131,6 @@ chrono type_traits
 chrono vector
 chrono version
 cinttypes cstdint
-cmath cstddef
-cmath initializer_list
 cmath limits
 cmath type_traits
 cmath version

libcxx/test/libcxx/transitive_includes/cxx14.csv

@@ -132,8 +132,6 @@ chrono type_traits
 chrono vector
 chrono version
 cinttypes cstdint
-cmath cstddef
-cmath initializer_list
 cmath limits
 cmath type_traits
 cmath version

libcxx/test/libcxx/transitive_includes/cxx17.csv

@@ -132,8 +132,6 @@ chrono type_traits
 chrono vector
 chrono version
 cinttypes cstdint
-cmath cstddef
-cmath initializer_list
 cmath limits
 cmath type_traits
 cmath version

libcxx/test/libcxx/transitive_includes/cxx20.csv

@@ -137,8 +137,6 @@ chrono type_traits
 chrono vector
 chrono version
 cinttypes cstdint
-cmath cstddef
-cmath initializer_list
 cmath limits
 cmath type_traits
 cmath version

libcxx/test/libcxx/transitive_includes/cxx23.csv

@@ -84,8 +84,6 @@ chrono string_view
 chrono vector
 chrono version
 cinttypes cstdint
-cmath cstddef
-cmath initializer_list
 cmath limits
 cmath version
 codecvt cctype

libcxx/test/libcxx/transitive_includes/cxx26.csv

@@ -84,8 +84,6 @@ chrono string_view
 chrono vector
 chrono version
 cinttypes cstdint
-cmath cstddef
-cmath initializer_list
 cmath limits
 cmath version
 codecvt cctype