mirror of https://github.com/python/cpython
1 << 31 is invalid for signed integers, fix it by making 1 unsigned.
Found by Clang trunk's Undefined-Behavior Sanitizer. [more to come]
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@ -452,7 +452,7 @@ SRE_CHARSET(SRE_CODE* set, SRE_CODE ch)
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}
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else {
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/* <CHARSET> <bitmap> (32 bits per code word) */
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if (ch < 256 && (set[ch >> 5] & (1 << (ch & 31))))
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if (ch < 256 && (set[ch >> 5] & (1u << (ch & 31))))
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return ok;
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set += 8;
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}
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@ -491,7 +491,7 @@ SRE_CHARSET(SRE_CODE* set, SRE_CODE ch)
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block = -1;
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set += 64;
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if (block >=0 &&
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(set[block*8 + ((ch & 255)>>5)] & (1 << (ch & 31))))
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(set[block*8 + ((ch & 255)>>5)] & (1u << (ch & 31))))
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return ok;
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set += count*8;
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}
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