Merge branch 'function-call-printing' into 'master'

Add own implementation for printing an unknown function

See merge request !96

pystencils/backends/cbackend.py

@@ -385,7 +385,8 @@ class CustomSympyPrinter(CCodePrinter):
         elif expr.func == int_div:
             return "((%s) / (%s))" % (self._print(expr.args[0]), self._print(expr.args[1]))
         else:
-            return super(CustomSympyPrinter, self)._print_Function(expr)
+            arg_str = ', '.join(self._print(a) for a in expr.args)
+            return f'{expr.name}({arg_str})'
 
     def _typed_number(self, number, dtype):
         res = self._print(number)

pystencils_tests/test_cuda_known_functions.py

@@ -32,8 +32,7 @@ def test_cuda_but_not_c():
     })
 
     ast = pystencils.create_kernel(assignments, 'cpu')
-    code = str(pystencils.show_code(ast))
-    assert "Not supported" in code
+    print(pystencils.show_code(ast))
 
 
 def test_cuda_unknown():
@@ -46,4 +45,3 @@ def test_cuda_unknown():
     ast = pystencils.create_kernel(assignments, 'gpu')
     code = str(pystencils.show_code(ast))
     print(code)
-    assert "Not supported in CUDA" in code