diff options
Diffstat (limited to 'src/lj_vmmath.c')
| -rw-r--r-- | src/lj_vmmath.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/lj_vmmath.c b/src/lj_vmmath.c index ff41ba28..6369bc6b 100644 --- a/src/lj_vmmath.c +++ b/src/lj_vmmath.c @@ -66,11 +66,11 @@ int32_t LJ_FASTCALL lj_vm_modi(int32_t a, int32_t b) { uint32_t y, ua, ub; lua_assert(b != 0); /* This must be checked before using this function. */ - ua = a < 0 ? (uint32_t)-a : (uint32_t)a; - ub = b < 0 ? (uint32_t)-b : (uint32_t)b; + ua = a < 0 ? ~(uint32_t)a+1u : (uint32_t)a; + ub = b < 0 ? ~(uint32_t)b+1u : (uint32_t)b; y = ua % ub; if (y != 0 && (a^b) < 0) y = y - ub; - if (((int32_t)y^b) < 0) y = (uint32_t)-(int32_t)y; + if (((int32_t)y^b) < 0) y = ~y+1u; return (int32_t)y; } #endif @@ -105,7 +105,7 @@ double lj_vm_powi(double x, int32_t k) else if (k == 0) return 1.0; else - return 1.0 / lj_vm_powui(x, (uint32_t)-k); + return 1.0 / lj_vm_powui(x, ~(uint32_t)k+1u); } /* Computes fpm(x) for extended math functions. */ |