+1

skirpichev · skirpichev · commit a6e99f97dd2a · 2025-02-22T14:14:55.000+03:00
diff --git a/Objects/floatobject.c b/Objects/floatobject.c
@@ -2054,8 +2054,8 @@ PyFloat_Pack2(double x, char *data, int le)
         uint64_t v;
 
         memcpy(&v, &x, sizeof(v));
-        bits = v & 0x1ff; /* NaN's payload */
-        if (v & 0x8000000000000) { /* is a quiet NaN? */
+        bits = v & 0x1ffULL; /* NaN's payload */
+        if (v & 0x8000000000000ULL) { /* is a quiet NaN? */
             bits += 0x200;
         }
     }
@@ -2403,10 +2403,10 @@ PyFloat_Unpack2(const char *data, int le)
         }
         else {
             /* NaN */
-            uint64_t v = sign ? 0xfff0000000000000 : 0x7ff0000000000000;
+            uint64_t v = sign ? 0xfff0000000000000ULL : 0x7ff0000000000000ULL;
 
             if (f & 0x200) { /* is a quiet NaN? */
-                v += 0x8000000000000;
+                v += 0x8000000000000ULL;
                 f -= 0x200;
             }
             v += f; /* add NaN's payload */

Original file line number	Diff line number	Diff line change
`@@ -2054,8 +2054,8 @@ PyFloat_Pack2(double x, char *data, int le)`
`2054`	`2054`	`uint64_t v;`
`2055`	`2055`
`2056`	`2056`	`memcpy(&v, &x, sizeof(v));`
`2057`		`- bits = v & 0x1ff; /* NaN's payload */`
`2058`		`- if (v & 0x8000000000000) { /* is a quiet NaN? */`
	`2057`	`+ bits = v & 0x1ffULL; /* NaN's payload */`
	`2058`	`+ if (v & 0x8000000000000ULL) { /* is a quiet NaN? */`
`2059`	`2059`	`bits += 0x200;`
`2060`	`2060`	`}`
`2061`	`2061`	`}`
`@@ -2403,10 +2403,10 @@ PyFloat_Unpack2(const char *data, int le)`
`2403`	`2403`	`}`
`2404`	`2404`	`else {`
`2405`	`2405`	`/* NaN */`
`2406`		`- uint64_t v = sign ? 0xfff0000000000000 : 0x7ff0000000000000;`
	`2406`	`+ uint64_t v = sign ? 0xfff0000000000000ULL : 0x7ff0000000000000ULL;`
`2407`	`2407`
`2408`	`2408`	`if (f & 0x200) { /* is a quiet NaN? */`
`2409`		`- v += 0x8000000000000;`
	`2409`	`+ v += 0x8000000000000ULL;`
`2410`	`2410`	`f -= 0x200;`
`2411`	`2411`	`}`
`2412`	`2412`	`v += f; /* add NaN's payload */`