some new features

.venv/lib/python3.12/site-packages/Cython/Includes/libcpp/limits.pxd

@@ -0,0 +1,61 @@
+cdef extern from "<limits>" namespace "std" nogil:
+    enum float_round_style:
+        round_indeterminate       = -1
+        round_toward_zero         = 0
+        round_to_nearest          = 1
+        round_toward_infinity     = 2
+        round_toward_neg_infinity = 3
+
+    enum float_denorm_style:
+        denorm_indeterminate  = -1
+        denorm_absent         = 0
+        denorm_present        = 1
+
+    #The static methods can be called as, e.g. numeric_limits[int].round_error(), etc.
+    #The const data members should be declared as static.  Cython currently doesn't allow that
+    #and/or I can't figure it out, so you must instantiate an object to access, e.g.
+    #cdef numeric_limits[double] lm
+    #print lm.round_style
+    cdef cppclass numeric_limits[T]:
+        const bint is_specialized
+        @staticmethod
+        T min()
+        @staticmethod
+        T max()
+        const int digits
+        const int  digits10
+        const bint is_signed
+        const bint is_integer
+        const bint is_exact
+        const int radix
+        @staticmethod
+        T epsilon()
+        @staticmethod
+        T round_error()
+
+        const int  min_exponent
+        const int  min_exponent10
+        const int  max_exponent
+        const int  max_exponent10
+
+        const bint has_infinity
+        const bint has_quiet_NaN
+        const bint has_signaling_NaN
+        const float_denorm_style has_denorm
+        const bint has_denorm_loss
+        @staticmethod
+        T infinity()
+        @staticmethod
+        T quiet_NaN()
+        @staticmethod
+        T signaling_NaN()
+        @staticmethod
+        T denorm_min()
+
+        const bint is_iec559
+        const bint is_bounded
+        const bint is_modulo
+
+        const bint traps
+        const bint tinyness_before
+        const float_round_style round_style