Added endianness check.

3 files changed, 36 insertions, 3 deletions

diff --git a/interpreter.py b/interpreter.py
index 74689a2..a85a0e5 100755
--- a/interpreter.py
+++ b/interpreter.py
@@ -46,7 +46,7 @@ class Host(InterpreterObject):
         InterpreterObject.__init__(self)
         self.methods.update({'pointer_size' : self.get_ptrsize_method,
                              'name' : self.get_name_method,
-                             'is_little_endian' : self.is_little_endian_method,
+                             'is_big_endian' : self.is_big_endian_method,
                              })
 
     def get_ptrsize_method(self, args):
@@ -57,8 +57,8 @@ class Host(InterpreterObject):
     def get_name_method(self, args):
         return platform.system().lower()
     
-    def is_little_endian_method(self, args):
-        return sys.byteorder == 'little'
+    def is_big_endian_method(self, args):
+        return sys.byteorder != 'little'
 
 class IncludeDirs(InterpreterObject):
     def __init__(self, curdir, dirs):
diff --git a/test cases/26 endian/builder.txt b/test cases/26 endian/builder.txt
new file mode 100644
index 0000000..e3c7b6f
--- /dev/null
+++ b/test cases/26 endian/builder.txt
@@ -0,0 +1,7 @@
+project('endian check', 'c')
+
+if(host.is_big_endian())
+  add_global_arguments('c', '-DIS_BE')
+endif
+
+add_test('endiantest', executable('prog', 'prog.c'))
diff --git a/test cases/26 endian/prog.c b/test cases/26 endian/prog.c
new file mode 100644
index 0000000..261ac0f
--- /dev/null
+++ b/test cases/26 endian/prog.c
@@ -0,0 +1,26 @@
+#include<stdint.h>
+
+int is_big_endian(void) {
+    union {
+        uint32_t i;
+        char c[4];
+    } bint = {0x01020304};
+
+    return bint.c[0] == 1;
+}
+
+
+int main(int argc, char **argv) {
+    int is_be_check = is_big_endian();
+    int is_be;
+#ifdef IS_BE
+    is_be = 1;
+#else
+    is_be = 0;
+#endif
+    if(is_be_check && is_be)
+        return 0;
+    if(!is_be_check && !is_be)
+        return 0;
+    return 1;
+}