1 files changed, 5 insertions, 5 deletions
diff --git a/generic/tclStrToD.c b/generic/tclStrToD.c
index 7c1d779..7aee804 100644
--- a/generic/tclStrToD.c
+++ b/generic/tclStrToD.c
@@ -5251,23 +5251,23 @@ TclFormatNaN(
 #else
     union {
 	double dv;
-	unsigned long long iv;
+	uint64_t iv;
     } bitwhack;
 
     bitwhack.dv = value;
     if (n770_fp) {
 	bitwhack.iv = Nokia770Twiddle(bitwhack.iv);
     }
-    if (bitwhack.iv & (1ULL << 63)) {
-	bitwhack.iv &= ~ (1ULL << 63);
+    if (bitwhack.iv & (UINT64_C(1) << 63)) {
+	bitwhack.iv &= ~ (UINT64_C(1) << 63);
 	*buffer++ = '-';
     }
     *buffer++ = 'N';
     *buffer++ = 'a';
     *buffer++ = 'N';
-    bitwhack.iv &= ((1ULL) << 51) - 1;
+    bitwhack.iv &= ((UINT64_C(1)) << 51) - 1;
     if (bitwhack.iv != 0) {
-	sprintf(buffer, "(%" TCL_LL_MODIFIER "x)", bitwhack.iv);
+	sprintf(buffer, "(%" PRIx64 ")", bitwhack.iv);
     } else {
 	*buffer = '\0';
     }