Test the CheckTypeSize module

We create test "Module.CheckTypeSize" to verify that type sizes get
detected correctly.

Tests/CMakeLists.txt

@@ -172,6 +172,8 @@ IF(BUILD_TESTING)
     "${CMake_BINARY_DIR}/Tests/CMakeBuildTest.cmake")
   LIST(APPEND TEST_BUILD_DIRS ${CMAKE_BUILD_TEST_BINARY_DIR})
 
+  ADD_TEST_MACRO(Module.CheckTypeSize CheckTypeSize)
+
   # If we are running right now with a UnixMakefiles based generator,
   # build the "Simple" test with the ExtraGenerators, if available
   # This doesn't test whether the generated project files work (unfortunately), 

Tests/Module/CheckTypeSize/CMakeLists.txt

@@ -0,0 +1,18 @@
+cmake_minimum_required(VERSION 2.8.1 FATAL_ERROR)
+project(CheckTypeSize C)
+
+include(CheckTypeSize)
+check_type_size("void*"     SIZEOF_DATA_PTR)
+check_type_size(char        SIZEOF_CHAR)
+check_type_size(short       SIZEOF_SHORT)
+check_type_size(int         SIZEOF_INT)
+check_type_size(long        SIZEOF_LONG)
+check_type_size("long long" SIZEOF_LONG_LONG)
+check_type_size(__int64     SIZEOF___INT64)
+check_type_size(size_t      SIZEOF_SIZE_T)
+check_type_size(ssize_t     SIZEOF_SSIZE_T)
+
+configure_file(config.h.in config.h)
+include_directories(${CheckTypeSize_BINARY_DIR})
+
+add_executable(CheckTypeSize CheckTypeSize.c)

Tests/Module/CheckTypeSize/CheckTypeSize.c

@@ -0,0 +1,122 @@
+#include "config.h"
+
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#ifdef HAVE_STDDEF_H
+# include <stddef.h>
+#endif
+
+#include <stdio.h>
+
+#define CHECK(t,m) do {                                                 \
+  if(sizeof(t) != m)                                                    \
+    {                                                                   \
+    printf(#m ": expected %d, got %d (line %d)\n",                      \
+           (int)sizeof(t), (int)m, __LINE__);                           \
+    result = 1;                                                         \
+    }                                                                   \
+  } while(0)
+
+#define NODEF(m) do {                                                   \
+  printf(#m": not defined (line %d)\n", __LINE__);                      \
+  result = 1;                                                           \
+  } while(0)
+
+int main()
+{
+  int result = 0;
+
+  /* void* */
+#if !defined(HAVE_SIZEOF_DATA_PTR)
+  NODEF(HAVE_SIZEOF_DATA_PTR);
+#endif
+#if defined(SIZEOF_DATA_PTR)
+  CHECK(void*, SIZEOF_DATA_PTR);
+#else
+  NODEF(SIZEOF_DATA_PTR);
+#endif
+
+  /* char */
+#if !defined(HAVE_SIZEOF_CHAR)
+  NODEF(HAVE_SIZEOF_CHAR);
+#endif
+#if defined(SIZEOF_CHAR)
+  CHECK(char, SIZEOF_CHAR);
+#else
+  NODEF(SIZEOF_CHAR);
+#endif
+
+  /* short */
+#if !defined(HAVE_SIZEOF_SHORT)
+  NODEF(HAVE_SIZEOF_SHORT);
+#endif
+#if defined(SIZEOF_SHORT)
+  CHECK(short, SIZEOF_SHORT);
+#else
+  NODEF(SIZEOF_SHORT);
+#endif
+
+  /* int */
+#if !defined(HAVE_SIZEOF_INT)
+  NODEF(HAVE_SIZEOF_INT);
+#endif
+#if defined(SIZEOF_INT)
+  CHECK(int, SIZEOF_INT);
+#else
+  NODEF(SIZEOF_INT);
+#endif
+
+  /* long */
+#if !defined(HAVE_SIZEOF_LONG)
+  NODEF(HAVE_SIZEOF_LONG);
+#endif
+#if defined(SIZEOF_LONG)
+  CHECK(long, SIZEOF_LONG);
+#else
+  NODEF(SIZEOF_LONG);
+#endif
+
+  /* long long */
+#if defined(SIZEOF_LONG_LONG)
+  CHECK(long long, SIZEOF_LONG_LONG);
+# if !defined(HAVE_SIZEOF_LONG_LONG)
+  NODEF(HAVE_SIZEOF_LONG_LONG);
+# endif
+#endif
+
+  /* __int64 */
+#if defined(SIZEOF___INT64)
+  CHECK(__int64, SIZEOF___INT64);
+# if !defined(HAVE_SIZEOF___INT64)
+  NODEF(HAVE_SIZEOF___INT64);
+# endif
+#elif defined(HAVE_SIZEOF___INT64)
+  NODEF(SIZEOF___INT64);
+#endif
+
+  /* size_t */
+#if !defined(HAVE_SIZEOF_SIZE_T)
+  NODEF(HAVE_SIZEOF_SIZE_T);
+#endif
+#if defined(SIZEOF_SIZE_T)
+  CHECK(size_t, SIZEOF_SIZE_T);
+#else
+  NODEF(SIZEOF_SIZE_T);
+#endif
+
+  /* ssize_t */
+#if defined(SIZEOF_SSIZE_T)
+  CHECK(ssize_t, SIZEOF_SSIZE_T);
+# if !defined(HAVE_SIZEOF_SSIZE_T)
+  NODEF(HAVE_SIZEOF_SSIZE_T);
+# endif
+#elif defined(HAVE_SIZEOF_SSIZE_T)
+  NODEF(SIZEOF_SSIZE_T);
+#endif
+
+  return result;
+}

Tests/Module/CheckTypeSize/config.h.in

@@ -0,0 +1,39 @@
+#cmakedefine HAVE_SYS_TYPES_H
+#cmakedefine HAVE_STDINT_H
+#cmakedefine HAVE_STDDEF_H
+
+/* void* */
+#cmakedefine HAVE_SIZEOF_DATA_PTR
+@SIZEOF_DATA_PTR_CODE@
+
+/* char */
+#cmakedefine HAVE_SIZEOF_CHAR
+@SIZEOF_CHAR_CODE@
+
+/* short */
+#cmakedefine HAVE_SIZEOF_SHORT
+@SIZEOF_SHORT_CODE@
+
+/* int */
+#cmakedefine HAVE_SIZEOF_INT
+@SIZEOF_INT_CODE@
+
+/* long */
+#cmakedefine HAVE_SIZEOF_LONG
+@SIZEOF_LONG_CODE@
+
+/* long long */
+#cmakedefine HAVE_SIZEOF_LONG_LONG
+@SIZEOF_LONG_LONG_CODE@
+
+/* __int64 */
+#cmakedefine HAVE_SIZEOF___INT64
+@SIZEOF___INT64_CODE@
+
+/* size_t */
+#cmakedefine HAVE_SIZEOF_SIZE_T
+@SIZEOF_SIZE_T_CODE@
+
+/* ssize_t */
+#cmakedefine HAVE_SIZEOF_SSIZE_T
+@SIZEOF_SSIZE_T_CODE@