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authorrubidium <rubidium@openttd.org>2007-12-21 08:34:53 +0000
committerrubidium <rubidium@openttd.org>2007-12-21 08:34:53 +0000
commitd5c4ba8246fbd9b44469037d8224a94c0a5ce5d3 (patch)
treeddf7507662244ef0ad7c479cce554387f33cec36
parenta6b1526c13506c47e892f1b66e2445c7a7e2beed (diff)
downloadopenttd-d5c4ba8246fbd9b44469037d8224a94c0a5ce5d3.tar.xz
(svn r11673) -Codechange: move the overflow safe type to a separate file.
-rw-r--r--src/core/overflowsafe_type.hpp147
-rw-r--r--src/driver.h2
-rw-r--r--src/helpers.hpp141
-rw-r--r--src/openttd.h3
-rw-r--r--src/zoom.hpp2
5 files changed, 151 insertions, 144 deletions
diff --git a/src/core/overflowsafe_type.hpp b/src/core/overflowsafe_type.hpp
new file mode 100644
index 000000000..632e261a6
--- /dev/null
+++ b/src/core/overflowsafe_type.hpp
@@ -0,0 +1,147 @@
+/* $Id$ */
+
+/** @file overflowsafe_type.hpp An overflow safe integer-like type. */
+
+#ifndef OVERFLOWSAFE_TYPE_HPP
+#define OVERFLOWSAFE_TYPE_HPP
+
+/**
+ * Overflow safe template for integers, i.e. integers that will never overflow
+ * you multiply the maximum value with 2, or add 2, or substract somethng from
+ * the minimum value, etc.
+ * @param T the type these integers are stored with.
+ * @param T_MAX the maximum value for the integers.
+ * @param T_MIN the minimum value for the integers.
+ */
+template <class T, T T_MAX, T T_MIN>
+class OverflowSafeInt
+{
+private:
+ /** The non-overflow safe backend to store the value in. */
+ T m_value;
+public:
+ OverflowSafeInt() : m_value(0) { }
+
+ OverflowSafeInt(const OverflowSafeInt& other) { this->m_value = other.m_value; }
+ OverflowSafeInt(const int64 int_) { this->m_value = int_; }
+
+ FORCEINLINE OverflowSafeInt& operator = (const OverflowSafeInt& other) { this->m_value = other.m_value; return *this; }
+
+ FORCEINLINE OverflowSafeInt operator - () const { return OverflowSafeInt(-this->m_value); }
+
+ /**
+ * Safe implementation of addition.
+ * @param other the amount to add
+ * @note when the addition would yield more than T_MAX (or less than T_MIN),
+ * it will be T_MAX (respectively T_MIN).
+ */
+ FORCEINLINE OverflowSafeInt& operator += (const OverflowSafeInt& other)
+ {
+ if ((T_MAX - abs(other.m_value)) < abs(this->m_value) &&
+ (this->m_value < 0) == (other.m_value < 0)) {
+ this->m_value = (this->m_value < 0) ? T_MIN : T_MAX ;
+ } else {
+ this->m_value += other.m_value;
+ }
+ return *this;
+ }
+
+ /* Operators for addition and substraction */
+ FORCEINLINE OverflowSafeInt operator + (const OverflowSafeInt& other) const { OverflowSafeInt result = *this; result += other; return result; }
+ FORCEINLINE OverflowSafeInt operator + (const int other) const { OverflowSafeInt result = *this; result += (int64)other; return result; }
+ FORCEINLINE OverflowSafeInt operator + (const uint other) const { OverflowSafeInt result = *this; result += (int64)other; return result; }
+ FORCEINLINE OverflowSafeInt& operator -= (const OverflowSafeInt& other) { return *this += (-other); }
+ FORCEINLINE OverflowSafeInt operator - (const OverflowSafeInt& other) const { OverflowSafeInt result = *this; result -= other; return result; }
+ FORCEINLINE OverflowSafeInt operator - (const int other) const { OverflowSafeInt result = *this; result -= (int64)other; return result; }
+ FORCEINLINE OverflowSafeInt operator - (const uint other) const { OverflowSafeInt result = *this; result -= (int64)other; return result; }
+
+ FORCEINLINE OverflowSafeInt& operator ++ () { return *this += 1; }
+ FORCEINLINE OverflowSafeInt& operator -- () { return *this += -1; }
+ FORCEINLINE OverflowSafeInt operator ++ (int) { OverflowSafeInt org = *this; *this += 1; return org; }
+ FORCEINLINE OverflowSafeInt operator -- (int) { OverflowSafeInt org = *this; *this += -1; return org; }
+
+ /**
+ * Safe implementation of multiplication.
+ * @param factor the factor to multiply this with.
+ * @note when the multiplication would yield more than T_MAX (or less than T_MIN),
+ * it will be T_MAX (respectively T_MIN).
+ */
+ FORCEINLINE OverflowSafeInt& operator *= (const int factor)
+ {
+ if (factor != 0 && (T_MAX / abs(factor)) < abs(this->m_value)) {
+ this->m_value = ((this->m_value < 0) == (factor < 0)) ? T_MAX : T_MIN ;
+ } else {
+ this->m_value *= factor ;
+ }
+ return *this;
+ }
+
+ /* Operators for multiplication */
+ FORCEINLINE OverflowSafeInt operator * (const int64 factor) const { OverflowSafeInt result = *this; result *= factor; return result; }
+ FORCEINLINE OverflowSafeInt operator * (const int factor) const { OverflowSafeInt result = *this; result *= (int64)factor; return result; }
+ FORCEINLINE OverflowSafeInt operator * (const uint factor) const { OverflowSafeInt result = *this; result *= (int64)factor; return result; }
+ FORCEINLINE OverflowSafeInt operator * (const uint16 factor) const { OverflowSafeInt result = *this; result *= (int64)factor; return result; }
+ FORCEINLINE OverflowSafeInt operator * (const byte factor) const { OverflowSafeInt result = *this; result *= (int64)factor; return result; }
+
+ /* Operators for division */
+ FORCEINLINE OverflowSafeInt& operator /= (const int divisor) { this->m_value /= divisor; return *this; }
+ FORCEINLINE OverflowSafeInt operator / (const OverflowSafeInt& divisor) const { OverflowSafeInt result = *this; result /= divisor.m_value; return result; }
+ FORCEINLINE OverflowSafeInt operator / (const int divisor) const { OverflowSafeInt result = *this; result /= divisor; return result; }
+ FORCEINLINE OverflowSafeInt operator / (const uint divisor) const { OverflowSafeInt result = *this; result /= (int)divisor; return result; }
+
+ /* Operators for modulo */
+ FORCEINLINE OverflowSafeInt& operator %= (const int divisor) { this->m_value %= divisor; return *this; }
+ FORCEINLINE OverflowSafeInt operator % (const int divisor) const { OverflowSafeInt result = *this; result %= divisor; return result; }
+
+ /* Operators for shifting */
+ FORCEINLINE OverflowSafeInt& operator <<= (const int shift) { this->m_value <<= shift; return *this; }
+ FORCEINLINE OverflowSafeInt operator << (const int shift) const { OverflowSafeInt result = *this; result <<= shift; return result; }
+ FORCEINLINE OverflowSafeInt& operator >>= (const int shift) { this->m_value >>= shift; return *this; }
+ FORCEINLINE OverflowSafeInt operator >> (const int shift) const { OverflowSafeInt result = *this; result >>= shift; return result; }
+
+ /* Operators for (in)equality when comparing overflow safe ints */
+ FORCEINLINE bool operator == (const OverflowSafeInt& other) const { return this->m_value == other.m_value; }
+ FORCEINLINE bool operator != (const OverflowSafeInt& other) const { return !(*this == other); }
+ FORCEINLINE bool operator > (const OverflowSafeInt& other) const { return this->m_value > other.m_value; }
+ FORCEINLINE bool operator >= (const OverflowSafeInt& other) const { return this->m_value >= other.m_value; }
+ FORCEINLINE bool operator < (const OverflowSafeInt& other) const { return !(*this >= other); }
+ FORCEINLINE bool operator <= (const OverflowSafeInt& other) const { return !(*this > other); }
+
+ /* Operators for (in)equality when comparing non-overflow safe ints */
+ FORCEINLINE bool operator == (const int other) const { return this->m_value == other; }
+ FORCEINLINE bool operator != (const int other) const { return !(*this == other); }
+ FORCEINLINE bool operator > (const int other) const { return this->m_value > other; }
+ FORCEINLINE bool operator >= (const int other) const { return this->m_value >= other; }
+ FORCEINLINE bool operator < (const int other) const { return !(*this >= other); }
+ FORCEINLINE bool operator <= (const int other) const { return !(*this > other); }
+
+ FORCEINLINE operator int64 () const { return this->m_value; }
+};
+
+/* Sometimes we got int64 operator OverflowSafeInt instead of vice versa. Handle that properly */
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator + (int64 a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b + a; }
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator - (int64 a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return -b + a; }
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator * (int64 a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b * a; }
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator / (int64 a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return (OverflowSafeInt<T, T_MAX, T_MIN>)a / (int)b; }
+
+/* Sometimes we got int operator OverflowSafeInt instead of vice versa. Handle that properly */
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator + (int a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b + a; }
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator - (int a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return -b + a; }
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator * (int a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b * a; }
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator / (int a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return (OverflowSafeInt<T, T_MAX, T_MIN>)a / (int)b; }
+
+/* Sometimes we got uint operator OverflowSafeInt instead of vice versa. Handle that properly */
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator + (uint a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b + a; }
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator - (uint a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return -b + a; }
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator * (uint a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b * a; }
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator / (uint a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return (OverflowSafeInt<T, T_MAX, T_MIN>)a / (int)b; }
+
+/* Sometimes we got byte operator OverflowSafeInt instead of vice versa. Handle that properly */
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator + (byte a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b + a; }
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator - (byte a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return -b + a; }
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator * (byte a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b * a; }
+template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator / (byte a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return (OverflowSafeInt<T, T_MAX, T_MIN>)a / (int)b; }
+
+typedef OverflowSafeInt<int64, INT64_MAX, INT64_MIN> OverflowSafeInt64;
+
+#endif /* OVERFLOWSAFE_TYPE_HPP */
diff --git a/src/driver.h b/src/driver.h
index 640fc9c21..676671c6b 100644
--- a/src/driver.h
+++ b/src/driver.h
@@ -6,7 +6,7 @@
#define DRIVER_H
#include "debug.h"
-#include "helpers.hpp"
+#include "core/enum_type.hpp"
#include "string.h"
#include <string>
#include <map>
diff --git a/src/helpers.hpp b/src/helpers.hpp
index d7bedae55..aaa38acb5 100644
--- a/src/helpers.hpp
+++ b/src/helpers.hpp
@@ -5,9 +5,6 @@
#ifndef HELPERS_HPP
#define HELPERS_HPP
-#include "macros.h"
-#include "core/enum_type.hpp"
-
/** When allocating using malloc/calloc in C++ it is usually needed to cast the return value
* from void* to the proper pointer type. Another alternative would be MallocT<> as follows */
template <typename T> FORCEINLINE T* MallocT(size_t num_elements)
@@ -42,142 +39,4 @@ template<typename T> void Swap(T& a, T& b)
b = t;
}
-
-/**
- * Overflow safe template for integers, i.e. integers that will never overflow
- * you multiply the maximum value with 2, or add 2, or substract somethng from
- * the minimum value, etc.
- * @param T the type these integers are stored with.
- * @param T_MAX the maximum value for the integers.
- * @param T_MIN the minimum value for the integers.
- */
-template <class T, T T_MAX, T T_MIN>
-class OverflowSafeInt
-{
-private:
- /** The non-overflow safe backend to store the value in. */
- T m_value;
-public:
- OverflowSafeInt() : m_value(0) { }
-
- OverflowSafeInt(const OverflowSafeInt& other) { this->m_value = other.m_value; }
- OverflowSafeInt(const int64 int_) { this->m_value = int_; }
-
- FORCEINLINE OverflowSafeInt& operator = (const OverflowSafeInt& other) { this->m_value = other.m_value; return *this; }
-
- FORCEINLINE OverflowSafeInt operator - () const { return OverflowSafeInt(-this->m_value); }
-
- /**
- * Safe implementation of addition.
- * @param other the amount to add
- * @note when the addition would yield more than T_MAX (or less than T_MIN),
- * it will be T_MAX (respectively T_MIN).
- */
- FORCEINLINE OverflowSafeInt& operator += (const OverflowSafeInt& other)
- {
- if ((T_MAX - abs(other.m_value)) < abs(this->m_value) &&
- (this->m_value < 0) == (other.m_value < 0)) {
- this->m_value = (this->m_value < 0) ? T_MIN : T_MAX ;
- } else {
- this->m_value += other.m_value;
- }
- return *this;
- }
-
- /* Operators for addition and substraction */
- FORCEINLINE OverflowSafeInt operator + (const OverflowSafeInt& other) const { OverflowSafeInt result = *this; result += other; return result; }
- FORCEINLINE OverflowSafeInt operator + (const int other) const { OverflowSafeInt result = *this; result += (int64)other; return result; }
- FORCEINLINE OverflowSafeInt operator + (const uint other) const { OverflowSafeInt result = *this; result += (int64)other; return result; }
- FORCEINLINE OverflowSafeInt& operator -= (const OverflowSafeInt& other) { return *this += (-other); }
- FORCEINLINE OverflowSafeInt operator - (const OverflowSafeInt& other) const { OverflowSafeInt result = *this; result -= other; return result; }
- FORCEINLINE OverflowSafeInt operator - (const int other) const { OverflowSafeInt result = *this; result -= (int64)other; return result; }
- FORCEINLINE OverflowSafeInt operator - (const uint other) const { OverflowSafeInt result = *this; result -= (int64)other; return result; }
-
- FORCEINLINE OverflowSafeInt& operator ++ () { return *this += 1; }
- FORCEINLINE OverflowSafeInt& operator -- () { return *this += -1; }
- FORCEINLINE OverflowSafeInt operator ++ (int) { OverflowSafeInt org = *this; *this += 1; return org; }
- FORCEINLINE OverflowSafeInt operator -- (int) { OverflowSafeInt org = *this; *this += -1; return org; }
-
- /**
- * Safe implementation of multiplication.
- * @param factor the factor to multiply this with.
- * @note when the multiplication would yield more than T_MAX (or less than T_MIN),
- * it will be T_MAX (respectively T_MIN).
- */
- FORCEINLINE OverflowSafeInt& operator *= (const int factor)
- {
- if (factor != 0 && (T_MAX / abs(factor)) < abs(this->m_value)) {
- this->m_value = ((this->m_value < 0) == (factor < 0)) ? T_MAX : T_MIN ;
- } else {
- this->m_value *= factor ;
- }
- return *this;
- }
-
- /* Operators for multiplication */
- FORCEINLINE OverflowSafeInt operator * (const int64 factor) const { OverflowSafeInt result = *this; result *= factor; return result; }
- FORCEINLINE OverflowSafeInt operator * (const int factor) const { OverflowSafeInt result = *this; result *= (int64)factor; return result; }
- FORCEINLINE OverflowSafeInt operator * (const uint factor) const { OverflowSafeInt result = *this; result *= (int64)factor; return result; }
- FORCEINLINE OverflowSafeInt operator * (const uint16 factor) const { OverflowSafeInt result = *this; result *= (int64)factor; return result; }
- FORCEINLINE OverflowSafeInt operator * (const byte factor) const { OverflowSafeInt result = *this; result *= (int64)factor; return result; }
-
- /* Operators for division */
- FORCEINLINE OverflowSafeInt& operator /= (const int divisor) { this->m_value /= divisor; return *this; }
- FORCEINLINE OverflowSafeInt operator / (const OverflowSafeInt& divisor) const { OverflowSafeInt result = *this; result /= divisor.m_value; return result; }
- FORCEINLINE OverflowSafeInt operator / (const int divisor) const { OverflowSafeInt result = *this; result /= divisor; return result; }
- FORCEINLINE OverflowSafeInt operator / (const uint divisor) const { OverflowSafeInt result = *this; result /= (int)divisor; return result; }
-
- /* Operators for modulo */
- FORCEINLINE OverflowSafeInt& operator %= (const int divisor) { this->m_value %= divisor; return *this; }
- FORCEINLINE OverflowSafeInt operator % (const int divisor) const { OverflowSafeInt result = *this; result %= divisor; return result; }
-
- /* Operators for shifting */
- FORCEINLINE OverflowSafeInt& operator <<= (const int shift) { this->m_value <<= shift; return *this; }
- FORCEINLINE OverflowSafeInt operator << (const int shift) const { OverflowSafeInt result = *this; result <<= shift; return result; }
- FORCEINLINE OverflowSafeInt& operator >>= (const int shift) { this->m_value >>= shift; return *this; }
- FORCEINLINE OverflowSafeInt operator >> (const int shift) const { OverflowSafeInt result = *this; result >>= shift; return result; }
-
- /* Operators for (in)equality when comparing overflow safe ints */
- FORCEINLINE bool operator == (const OverflowSafeInt& other) const { return this->m_value == other.m_value; }
- FORCEINLINE bool operator != (const OverflowSafeInt& other) const { return !(*this == other); }
- FORCEINLINE bool operator > (const OverflowSafeInt& other) const { return this->m_value > other.m_value; }
- FORCEINLINE bool operator >= (const OverflowSafeInt& other) const { return this->m_value >= other.m_value; }
- FORCEINLINE bool operator < (const OverflowSafeInt& other) const { return !(*this >= other); }
- FORCEINLINE bool operator <= (const OverflowSafeInt& other) const { return !(*this > other); }
-
- /* Operators for (in)equality when comparing non-overflow safe ints */
- FORCEINLINE bool operator == (const int other) const { return this->m_value == other; }
- FORCEINLINE bool operator != (const int other) const { return !(*this == other); }
- FORCEINLINE bool operator > (const int other) const { return this->m_value > other; }
- FORCEINLINE bool operator >= (const int other) const { return this->m_value >= other; }
- FORCEINLINE bool operator < (const int other) const { return !(*this >= other); }
- FORCEINLINE bool operator <= (const int other) const { return !(*this > other); }
-
- FORCEINLINE operator int64 () const { return this->m_value; }
-};
-
-/* Sometimes we got int64 operator OverflowSafeInt instead of vice versa. Handle that properly */
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator + (int64 a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b + a; }
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator - (int64 a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return -b + a; }
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator * (int64 a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b * a; }
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator / (int64 a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return (OverflowSafeInt<T, T_MAX, T_MIN>)a / (int)b; }
-
-/* Sometimes we got int operator OverflowSafeInt instead of vice versa. Handle that properly */
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator + (int a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b + a; }
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator - (int a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return -b + a; }
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator * (int a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b * a; }
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator / (int a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return (OverflowSafeInt<T, T_MAX, T_MIN>)a / (int)b; }
-
-/* Sometimes we got uint operator OverflowSafeInt instead of vice versa. Handle that properly */
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator + (uint a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b + a; }
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator - (uint a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return -b + a; }
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator * (uint a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b * a; }
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator / (uint a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return (OverflowSafeInt<T, T_MAX, T_MIN>)a / (int)b; }
-
-/* Sometimes we got byte operator OverflowSafeInt instead of vice versa. Handle that properly */
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator + (byte a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b + a; }
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator - (byte a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return -b + a; }
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator * (byte a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return b * a; }
-template <class T, int64 T_MAX, int64 T_MIN> FORCEINLINE OverflowSafeInt<T, T_MAX, T_MIN> operator / (byte a, OverflowSafeInt<T, T_MAX, T_MIN> b) { return (OverflowSafeInt<T, T_MAX, T_MIN>)a / (int)b; }
-
#endif /* HELPERS_HPP */
diff --git a/src/openttd.h b/src/openttd.h
index 7fd02174b..11db9139e 100644
--- a/src/openttd.h
+++ b/src/openttd.h
@@ -8,6 +8,7 @@
#define VARDEF extern
#endif
+#include "macros.h"
#include "helpers.hpp"
struct Oblong {
@@ -68,7 +69,7 @@ typedef uint16 GroupID;
typedef uint16 EngineRenewID;
typedef uint16 DestinationID;
-typedef OverflowSafeInt<int64, INT64_MAX, INT64_MIN> OverflowSafeInt64;
+#include "core/overflowsafe_type.hpp"
typedef OverflowSafeInt64 Money;
/* DestinationID must be at least as large as every these below, because it can
diff --git a/src/zoom.hpp b/src/zoom.hpp
index dea064196..56e3c6099 100644
--- a/src/zoom.hpp
+++ b/src/zoom.hpp
@@ -5,7 +5,7 @@
#ifndef ZOOM_HPP
#define ZOOM_HPP
-#include "helpers.hpp"
+#include "core/enum_type.hpp"
enum ZoomLevel {
/* Our possible zoom-levels */