Add API for structure

llvm_cbuilder/shortnames.py

@@ -7,6 +7,7 @@ int = Type.int(32)
 int16 = short
 int32 = int
 int64 = Type.int(64)
+
 float = Type.float()
 double = Type.double()
 
@@ -15,3 +16,14 @@ double = Type.double()
 pointer = Type.pointer
 
 void_p = pointer(char)
+
+# platform dependent
+
+def _determine_pointer_size():
+    from ctypes import sizeof, c_void_p
+    return sizeof(c_void_p) * 8
+
+pointer_size = _determine_pointer_size()
+
+intp = {32: int32, 64: int64}[pointer_size]
+