Handout

types.h

@@ -0,0 +1,67 @@
+/*! \file
+ *  \brief Definition of standard integer types with specified widths and their
+ * limits
+ */
+
+#pragma once
+
+// Standard Integer Types
+using uint8_t = unsigned char;
+using uint16_t = unsigned short;
+using uint32_t = unsigned int;
+using uint64_t = unsigned long long;
+using uintptr_t = unsigned long long;
+
+using size_t = __SIZE_TYPE__;
+
+using int8_t = char;
+using int16_t = short;
+using int32_t = int;
+using int64_t = long long;
+using intptr_t = long long;
+
+using ssize_t = long int;
+
+using ptrdiff_t = __PTRDIFF_TYPE__;
+
+// Validate typedef size
+static_assert(sizeof(int8_t) == (1), "Wrong size for 'int8_t'");
+static_assert(sizeof(int16_t) == (2), "Wrong size for 'int16_t'");
+static_assert(sizeof(int32_t) == (4), "Wrong size for 'int32_t'");
+static_assert(sizeof(int64_t) == (8), "Wrong size for 'int64_t'");
+static_assert(sizeof(intptr_t) == sizeof(void*), "Wrong size for 'intptr_t'");
+static_assert(sizeof(uint8_t) == (1), "Wrong size for 'uint8_t'");
+static_assert(sizeof(uint16_t) == (2), "Wrong size for 'uint16_t'");
+static_assert(sizeof(uint32_t) == (4), "Wrong size for 'uint32_t'");
+static_assert(sizeof(uint64_t) == (8), "Wrong size for 'uint64_t'");
+static_assert(sizeof(uintptr_t) == sizeof(void*), "Wrong size for 'uintptr_t'");
+
+// Limits
+constexpr int8_t INT8_MIN = (-__INT8_MAX__ - 1);
+constexpr int8_t INT8_MAX = (__INT8_MAX__);
+constexpr int16_t INT16_MIN = (-__INT16_MAX__ - 1);
+constexpr int16_t INT16_MAX = (__INT16_MAX__);
+constexpr int32_t INT32_MIN = (-__INT32_MAX__ - 1);
+constexpr int32_t INT32_MAX = (__INT32_MAX__);
+constexpr int64_t INT64_MIN = (-__INT64_MAX__ - 1);
+constexpr int64_t INT64_MAX = (__INT64_MAX__);
+constexpr intptr_t INTPTR_MIN = (-__INTPTR_MAX__ - 1);
+constexpr intptr_t INTPTR_MAX = (__INTPTR_MAX__);
+
+constexpr uint8_t UINT8_MAX = (__UINT8_MAX__);
+constexpr uint16_t UINT16_MAX = (__UINT16_MAX__);
+constexpr uint32_t UINT32_MAX = (__UINT32_MAX__);
+constexpr uint64_t UINT64_MAX = (__UINT64_MAX__);
+constexpr uintptr_t UINTPTR_MAX = (__UINTPTR_MAX__);
+
+constexpr ptrdiff_t PTRDIFF_MIN = (-__PTRDIFF_MAX__ - 1);
+constexpr ptrdiff_t PTRDIFF_MAX = (__PTRDIFF_MAX__);
+
+constexpr size_t SIZE_MAX = (__SIZE_MAX__);
+constexpr ssize_t SSIZE_MIN = (-__INT32_MAX__ - 1);
+constexpr ssize_t SSIZE_MAX = (__INT32_MAX__);
+
+/// The name of our OS
+constexpr char* OS_NAME =
+    "MP"
+    "StuBS";