Implement i32, i64 in C interop and test it

integration_tests/test_c_interop_01.py

@@ -1,4 +1,4 @@
-from ltypes import ccall, f64, f32
+from ltypes import ccall, f32, f64, i32, i64
 from math import pi
 
 @ccall
@@ -9,7 +9,20 @@ def _lfortran_dsin(x: f64) -> f64:
 def _lfortran_ssin(x: f32) -> f32:
     pass
 
+@ccall
+def _lfortran_bgt32(i: i32, j: i32) -> i32:
+    pass
+
+@ccall
+def _lfortran_bgt64(i: i64, j: i64) -> i64:
+    pass
+
 assert abs(_lfortran_dsin(pi) - 0) < 1e-12
 assert abs(_lfortran_dsin(pi/2) - 1) < 1e-12
 assert abs(_lfortran_ssin(pi) - 0) < 1e-6
 assert abs(_lfortran_ssin(pi/2) - 1) < 1e-6
+
+assert _lfortran_bgt32(3, 4) == 0
+assert _lfortran_bgt32(4, 3) == 1
+assert _lfortran_bgt64(3, 4) == 0
+assert _lfortran_bgt64(4, 3) == 1

src/runtime/ltypes/ltypes.py

@@ -89,6 +89,10 @@ def convert_type_to_ctype(arg):
                 return ctypes.c_double
             elif arg == f32:
                 return ctypes.c_float
+            elif arg == i64:
+                return ctypes.c_int64
+            elif arg == i32:
+                return ctypes.c_int32
             else:
                 raise NotImplementedError("Type not implemented")
         def get_rtlib_dir():