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deep dive into a C constant

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Randy Bush 2020-05-06 16:44:56 -07:00
parent d661acaba4
commit 9fcbaad367
2 changed files with 4 additions and 4 deletions
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4
draft-ietf-lsvr-l3dl.txt
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@ -658,8 +658,8 @@ Internet-Draft Layer 3 Discovery and Liveness May 2020
sum[i & 3] += sbox[*b++]; sum[i & 3] += sbox[*b++];
for (int i = 0; i < sizeof(sum)/sizeof(*sum); i++) for (int i = 0; i < sizeof(sum)/sizeof(*sum); i++)
result = (result << 8) + sum[i]; result = (result << 8) + sum[i];
result = (result >> 32) + (result & 0xFFFFFFFF); result = (result >> 32) + (result & 0xFFFFFFFFU);
result = (result >> 32) + (result & 0xFFFFFFFF); result = (result >> 32) + (result & 0xFFFFFFFFU);
return (uint32_t) result; return (uint32_t) result;
} }
<CODE ENDS> <CODE ENDS>

4
draft-ietf-lsvr-l3dl.xml
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@ -550,8 +550,8 @@ uint32_t sbox_checksum_32(const uint8_t *b, const size_t n)
sum[i & 3] += sbox[*b++]; sum[i & 3] += sbox[*b++];
for (int i = 0; i < sizeof(sum)/sizeof(*sum); i++) for (int i = 0; i < sizeof(sum)/sizeof(*sum); i++)
result = (result << 8) + sum[i]; result = (result << 8) + sum[i];
result = (result >> 32) + (result & 0xFFFFFFFF); result = (result >> 32) + (result & 0xFFFFFFFFU);
result = (result >> 32) + (result & 0xFFFFFFFF); result = (result >> 32) + (result & 0xFFFFFFFFU);
return (uint32_t) result; return (uint32_t) result;
} }
<CODE ENDS> <CODE ENDS>