From e470ba8b7b21b0b3de1cb1e6a9556e133c1268d7 Mon Sep 17 00:00:00 2001
From: Victor Zverovich <viz@meta.com>
Date: Thu, 11 Jan 2024 19:27:54 -0800
Subject: [PATCH] Simplify exception detection

---
 include/fmt/base.h | 35 ++++++++++++++++++-----------------
 1 file changed, 18 insertions(+), 17 deletions(-)

diff --git a/include/fmt/base.h b/include/fmt/base.h
index d3b51732..9e7c5b15 100644
--- a/include/fmt/base.h
+++ b/include/fmt/base.h
@@ -54,6 +54,24 @@
 #  define FMT_LIBCPP_VERSION 0
 #endif
 
+// Check if exceptions are disabled.
+#ifdef FMT_EXCEPTIONS
+// Use the provided definition.
+#elif defined(__GNUC__) && !defined(__EXCEPTIONS)
+#  define FMT_EXCEPTIONS 0
+#elif FMT_MSC_VERSION && !_HAS_EXCEPTIONS
+#  define FMT_EXCEPTIONS 0
+#else
+#  define FMT_EXCEPTIONS 1
+#endif
+#if FMT_EXCEPTIONS
+#  define FMT_TRY try
+#  define FMT_CATCH(x) catch (x)
+#else
+#  define FMT_TRY if (true)
+#  define FMT_CATCH(x) if (false)
+#endif
+
 #ifdef _MSVC_LANG
 #  define FMT_CPLUSPLUS _MSVC_LANG
 #else
@@ -119,23 +137,6 @@
 #  define FMT_CONSTEXPR20
 #endif
 
-// Check if exceptions are disabled.
-#ifndef FMT_EXCEPTIONS
-#  if (defined(__GNUC__) && !defined(__EXCEPTIONS)) || \
-      (FMT_MSC_VERSION && !_HAS_EXCEPTIONS)
-#    define FMT_EXCEPTIONS 0
-#  else
-#    define FMT_EXCEPTIONS 1
-#  endif
-#endif
-#if FMT_EXCEPTIONS
-#  define FMT_TRY try
-#  define FMT_CATCH(x) catch (x)
-#else
-#  define FMT_TRY if (true)
-#  define FMT_CATCH(x) if (false)
-#endif
-
 // Disable [[noreturn]] on MSVC/NVCC because of bogus unreachable code warnings.
 #if FMT_EXCEPTIONS && FMT_HAS_CPP_ATTRIBUTE(noreturn) && !FMT_MSC_VERSION && \
     !defined(__NVCC__)