Use predefined macro values for numeric limits in cuda backend

src/pystencils/backend/platforms/cuda.py

@@ -65,7 +65,7 @@ class CudaPlatform(GenericGpu):
 
     @property
     def required_headers(self) -> set[str]:
-        return {'"gpu_defines.h"', "<cuda/std/limits>"}
+        return {'"gpu_defines.h"'}
 
     def materialize_iteration_space(
         self, body: PsBlock, ispace: IterationSpace
@@ -85,8 +85,11 @@ class CudaPlatform(GenericGpu):
         arg_types = (dtype,) * func.num_args
 
         if isinstance(dtype, PsScalarType) and func in (NumericLimitsFunctions.Min, NumericLimitsFunctions.Max):
+            assert isinstance(dtype, PsIeeeFloatType)
+            defines = { NumericLimitsFunctions.Min: "NEG_INFINITY", NumericLimitsFunctions.Max: "POS_INFINITY" }
+
             return PsLiteralExpr(
-                PsLiteral(f"::cuda::std::numeric_limits<{dtype.c_string()}>::{func.function_name}()", dtype))
+                PsLiteral(defines[func.function_name], dtype))
 
         if isinstance(dtype, PsIeeeFloatType):
             match func: