1 files changed, 4 insertions, 4 deletions
diff --git a/tools/src/h5import/h5import.c b/tools/src/h5import/h5import.c
index 0c0e0fb..fc4d431 100644
--- a/tools/src/h5import/h5import.c
+++ b/tools/src/h5import/h5import.c
@@ -4728,15 +4728,15 @@ uint32_t swap_uint32(uint32_t val)
 
 int32_t swap_int32(int32_t val)
 {
-    val = ((val << 8) & 0xFF00FF00) | ((val >> 8) & 0xFF00FF);
+    val = (int32_t)(((uint32_t)(val << 8) & 0xFF00FF00) | ((val >> 8) & 0xFF00FF));
     return (val << 16) | ((val >> 16) & 0xFFFF);
 }
 
 int64_t swap_int64(int64_t val)
 {
-    val = ((val << 8) & 0xFF00FF00FF00FF00ULL) | ((val >> 8) & 0x00FF00FF00FF00FFULL);
-    val = ((val << 16) & 0xFFFF0000FFFF0000ULL) | ((val >> 16) & 0x0000FFFF0000FFFFULL);
-    return (val << 32) | ((val >> 32) & 0xFFFFFFFFULL);
+    val = (int64_t)(((uint64_t)(val << 8) & 0xFF00FF00FF00FF00ULL) | ((uint64_t)(val >> 8) & 0x00FF00FF00FF00FFULL));
+    val = (int64_t)(((uint64_t)(val << 16) & 0xFFFF0000FFFF0000ULL) | ((uint64_t)(val >> 16) & 0x0000FFFF0000FFFFULL));
+    return (int64_t)((uint64_t)(val << 32) | ((uint64_t)(val >> 32) & 0xFFFFFFFFULL));
 }
 
 uint64_t swap_uint64(uint64_t val)