Refine printing of integer literals

As discussed today; this MR partially reverts !387 (merged) to only print casts for integer literals less than 32 bit wide. 64-bit literals are instead printed with the LL suffix, since long long is the only type guaranteed to be 64 bit wide on both Unix and Windows systems (cppreference).

src/pystencils/types/types.py

@@ -483,7 +483,7 @@ class PsIntegerType(PsScalarType, ABC):
         if not isinstance(value, np_dtype):
             raise PsTypeError(f"Given value {value} is not of required type {np_dtype}")
         unsigned_suffix = "" if self.signed else "u"
-        return f"(({self._c_type_without_const()}) {value}{unsigned_suffix})"
+        return f"{value}{unsigned_suffix}"
 
     def create_constant(self, value: Any) -> Any:
         np_type = self.NUMPY_TYPES[self._width]
@@ -498,12 +498,9 @@ class PsIntegerType(PsScalarType, ABC):
 
         raise PsTypeError(f"Could not interpret {value} as {repr(self)}")
 
-    def _c_type_without_const(self) -> str:
-        prefix = "" if self._signed else "u"
-        return f"{prefix}int{self._width}_t"
-
     def c_string(self) -> str:
-        return f"{self._const_string()}{self._c_type_without_const()}"
+        prefix = "" if self._signed else "u"
+        return f"{self._const_string()}{prefix}int{self._width}_t"
 
     def __repr__(self) -> str:
         return f"PsIntegerType( width={self.width}, signed={self.signed}, const={self.const} )"