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xi (Xi Wang)

  • Registered on: 07/15/2012
  • Last connection: 04/03/2013

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12/31/2012

02:01 PM Ruby master Bug #7371: Fix undefined overflow checking in bigdecimal
To see how it works, try to compile the following (simplified) code with gcc 4.8. The entire function will be optimi... xi (Xi Wang)

11/16/2012

05:24 PM Ruby master Bug #7371 (Closed): Fix undefined overflow checking in bigdecimal
In AddExponent() at ext/bigdecimal/bigdecimal.c:3677, the overflow checks rely on signed integer overflow, which is u... xi (Xi Wang)

07/15/2012

06:54 PM Backport193 Backport #6736 (Closed): Avoid misoptimization due to division by zero
In time.c (quo) we have:
if (b == 0) rb_num_zerodiv();
c = a / b;
This code pattern is dangero...
xi (Xi Wang)

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