Several include fixes

Author: Kaaserne

include/Lz/detail/iterators/range.hpp

@@ -7,15 +7,15 @@
 #include <Lz/detail/iterator.hpp>
 #include <Lz/detail/procs.hpp>
 #include <Lz/detail/traits.hpp>
-#include <cmath>
 #include <limits>
 
 namespace lz {
 namespace detail {
 
 template<class Floating>
 constexpr bool almost_equal(const Floating a, const Floating b, const Floating epsilon = static_cast<Floating>(1e-6)) {
-    return std::fabs(a - b) < epsilon;
+    const auto abs_a = a - b;
+    return (abs_a < 0 ? -abs_a : abs_a) < epsilon;
 }
 
 template<class Arithmetic, bool /* step wise */>

include/Lz/stream.hpp

@@ -7,6 +7,7 @@
 #include <Lz/detail/adaptors/fn_args_holder.hpp>
 #include <Lz/detail/compiler_checks.hpp>
 #include <Lz/detail/traits.hpp>
+#include <ostream>
 #include <string>
 
 #if !defined(LZ_STANDALONE)
@@ -17,11 +18,6 @@
 #elif defined(LZ_HAS_FORMAT)
 
 #include <format>
-#include <sstream>
-
-#else
-
-#include <sstream>
 
 #endif // !defined(LZ_STANDALONE)
 

src/lz.cppm

@@ -1,19 +1,14 @@
 module;
 
 #include <algorithm>
-#include <array>
-#include <cmath>
-#include <concepts>
-#include <cstdint>
 #include <format>
-#include <functional>
 #include <iterator>
 #include <limits>
 #include <numeric>
 #include <optional>
+#include <ostream>
 #include <random>
 #include <regex>
-#include <sstream>
 #include <string_view>
 #include <tuple>
 #include <type_traits>
@@ -65,6 +60,7 @@ export module lz;
 #include "Lz/loop.hpp"
 #include "Lz/map.hpp"
 #include "Lz/optional.hpp"
+#include "Lz/pairwise.hpp"
 #include "Lz/random.hpp"
 #include "Lz/range.hpp"
 #include "Lz/regex_split.hpp"