add std::endian support if available

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Exiv2 · Jul 20, 2023 · 32c05d4 · 32c05d4
1 parent a2d6996
commit 32c05d4
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/src/image.cpp b/src/image.cpp
@@ -46,6 +46,7 @@
 
 // + standard includes
 #include <array>
+#include <bit>
 #include <cstdio>
 #include <cstring>
 #include <limits>
@@ -168,7 +169,9 @@ bool Image::isPrintICC(uint16_t type, Exiv2::PrintStructureOption option) {
 }
 
 bool Image::isBigEndianPlatform() {
-#ifdef __LITTLE_ENDIAN__
+#ifdef __cpp_lib_endian
+  return std::endian::native == std::endian::big;
+#elif defined(__LITTLE_ENDIAN__)
   return false;
 #elif defined(__BIG_ENDIAN__)
   return true;
@@ -188,7 +191,9 @@ bool Image::isBigEndianPlatform() {
 #endif
 }
 bool Image::isLittleEndianPlatform() {
-#ifdef __LITTLE_ENDIAN__
+#ifdef __cpp_lib_endian
+  return std::endian::native == std::endian::little;
+#elif defined(__LITTLE_ENDIAN__)
   return true;
 #else
   return !isBigEndianPlatform();