From 457f87b08d0040e5f3028a5aad2c08ee8ae85866 Mon Sep 17 00:00:00 2001
From: barracuda156 <vital.had@gmail.com>
Date: Thu, 21 Dec 2023 01:54:09 +0800
Subject: [PATCH] special: fix isnan/isinf

---
 scipy/special/Faddeeva.cc               | 2 ++
 scipy/special/_round.h                  | 4 ++++
 scipy/special/boost_special_functions.h | 2 +-
 scipy/special/wright.cc                 | 2 ++
 4 files changed, 9 insertions(+), 1 deletion(-)

diff --git scipy/special/Faddeeva.cc scipy/special/Faddeeva.cc
index 370516dc0..8148fe60b 100644
--- scipy/special/Faddeeva.cc
+++ scipy/special/Faddeeva.cc
@@ -122,6 +122,8 @@
 #include <cmath>
 
 #define complex std::complex
+#define isinf std::isinf
+#define isnan std::isnan
 
 /////////////////////////////////////////////////////////////////////////
 
diff --git scipy/special/_round.h scipy/special/_round.h
index e9457245b..1da578d66 100644
--- scipy/special/_round.h
+++ scipy/special/_round.h
@@ -8,6 +8,10 @@
 #include <math.h>
 #include "cephes/dd_idefs.h"
 
+#if defined(__cplusplus)
+#include <cmath>
+using std::isnan;
+#endif
 
 double add_round_up(double a, double b)
 {
diff --git scipy/special/boost_special_functions.h scipy/special/boost_special_functions.h
index 69ea28562..f1378558f 100644
--- scipy/special/boost_special_functions.h
+++ scipy/special/boost_special_functions.h
@@ -190,7 +190,7 @@ Real hyp1f1_wrap(Real a, Real b, Real x)
 {
     Real y;
 
-    if (isnan(a) || isnan(b) || isnan(x)) {
+    if (std::isnan(a) || std::isnan(b) || std::isnan(x)) {
         return NAN;
     }
     if (b <= 0 && std::trunc(b) == b) {
diff --git scipy/special/wright.cc scipy/special/wright.cc
index 02161d41a..9d0614836 100644
--- scipy/special/wright.cc
+++ scipy/special/wright.cc
@@ -83,6 +83,8 @@ extern "C" {
 #include <cfloat>
 
 using std::complex;
+using std::isinf;
+using std::isnan;
 
 #define TWOITERTOL DBL_EPSILON