get rid of ssize_t

Author: Hana Dusíková

include/ctre/iterators.hpp

@@ -3,6 +3,7 @@
 
 #include "literals.hpp"
 #include "wrapper.hpp"
+#include <cstddef>
 
 namespace ctre {
 
@@ -17,7 +18,7 @@ template <typename BeginIterator, typename EndIterator, typename RE, typename Re
 	using iterator_category = std::forward_iterator_tag;
 	using pointer = void;
 	using reference = const value_type &;
-	using difference_type = ssize_t;
+	using difference_type = int;
 
 	BeginIterator orig_begin{};
 	BeginIterator current{};
@@ -95,7 +96,7 @@ template <typename BeginIterator, typename EndIterator, typename RE, typename Re
 	using iterator_category = std::forward_iterator_tag;
 	using pointer = void;
 	using reference = const value_type &;
-	using difference_type = ssize_t;
+	using difference_type = int;
 
 	BeginIterator orig_begin{};
 	BeginIterator current{};

include/ctre/range.hpp

@@ -50,7 +50,7 @@ template <typename Range, typename RE> struct multi_subject_range {
 		using iterator_category = std::forward_iterator_tag;
 		using pointer = void;
 		using reference = const value_type &;
-		using difference_type = ssize_t;
+		using difference_type = int;
 
 		first_type first{};
 		last_type last{};

single-header/ctre-unicode.hpp

@@ -4443,6 +4443,8 @@ constexpr CTRE_FORCE_INLINE R evaluate(const Iterator begin, Iterator current, c
 #ifndef CTRE_V2__CTRE__ITERATOR__HPP
 #define CTRE_V2__CTRE__ITERATOR__HPP
 
+#include <cstddef>
+
 namespace ctre {
 
 // TODO make proper iterator traits here
@@ -4456,7 +4458,7 @@ template <typename BeginIterator, typename EndIterator, typename RE, typename Re
 	using iterator_category = std::forward_iterator_tag;
 	using pointer = void;
 	using reference = const value_type &;
-	using difference_type = ssize_t;
+	using difference_type = int;
 
 	BeginIterator orig_begin{};
 	BeginIterator current{};
@@ -4534,7 +4536,7 @@ template <typename BeginIterator, typename EndIterator, typename RE, typename Re
 	using iterator_category = std::forward_iterator_tag;
 	using pointer = void;
 	using reference = const value_type &;
-	using difference_type = ssize_t;
+	using difference_type = int;
 
 	BeginIterator orig_begin{};
 	BeginIterator current{};
@@ -4678,7 +4680,7 @@ template <typename Range, typename RE> struct multi_subject_range {
 		using iterator_category = std::forward_iterator_tag;
 		using pointer = void;
 		using reference = const value_type &;
-		using difference_type = ssize_t;
+		using difference_type = int;
 
 		first_type first{};
 		last_type last{};

single-header/ctre.hpp

@@ -4440,6 +4440,8 @@ constexpr CTRE_FORCE_INLINE R evaluate(const Iterator begin, Iterator current, c
 #ifndef CTRE_V2__CTRE__ITERATOR__HPP
 #define CTRE_V2__CTRE__ITERATOR__HPP
 
+#include <cstddef>
+
 namespace ctre {
 
 // TODO make proper iterator traits here
@@ -4453,7 +4455,7 @@ template <typename BeginIterator, typename EndIterator, typename RE, typename Re
 	using iterator_category = std::forward_iterator_tag;
 	using pointer = void;
 	using reference = const value_type &;
-	using difference_type = ssize_t;
+	using difference_type = int;
 
 	BeginIterator orig_begin{};
 	BeginIterator current{};
@@ -4531,7 +4533,7 @@ template <typename BeginIterator, typename EndIterator, typename RE, typename Re
 	using iterator_category = std::forward_iterator_tag;
 	using pointer = void;
 	using reference = const value_type &;
-	using difference_type = ssize_t;
+	using difference_type = int;
 
 	BeginIterator orig_begin{};
 	BeginIterator current{};
@@ -4675,7 +4677,7 @@ template <typename Range, typename RE> struct multi_subject_range {
 		using iterator_category = std::forward_iterator_tag;
 		using pointer = void;
 		using reference = const value_type &;
-		using difference_type = ssize_t;
+		using difference_type = int;
 
 		first_type first{};
 		last_type last{};