math: Fix UB in flt-32 nearbyint

UBSAN: Undefined behaviour in ../sysdeps/ieee754/flt-32/s_nearbyintf.c:53:4 left shift of 1 by 31 cannot be represented in type 'int'
2025-05-06 13:43:36 +00:00 · 2025-05-06 13:43:36 +00:00 · 0a933c9bf7
parent ae54df4654
commit 0a933c9bf7
1 changed files with 2 additions and 1 deletions
--- a/sysdeps/ieee754/flt-32/s_nearbyintf.c
+++ b/sysdeps/ieee754/flt-32/s_nearbyintf.c
@ -34,7 +34,8 @@ __nearbyintf (float x)
 		-8.3886080000e+06, /* 0xcb000000 */
  };
  fenv_t env;
-  int32_t i0, j0, sx;
+  int32_t i0, j0;
+  uint32_t sx;
  float w, t;
  GET_FLOAT_WORD (i0, x);
  sx = (i0 >> 31) & 1;