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Fix GCC 7 -Wimplicit-fallthrough warnings (32 bit)

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Add magic comments recognized by default -Wimplicit-fallthrough=3
Follow-up to e5f464, fixes Ticket 22446 for 32 bit.
This commit is contained in:
Andreas Stieger 2017-05-31 11:54:11 +02:00 committed by Nick Mathewson
parent c361458998
commit 1763aa058b
1 changed files with 24 additions and 24 deletions
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48
src/ext/ed25519/donna/modm-donna-32bit.h
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@ -385,14 +385,14 @@ sub256_modm_batch(bignum256modm out, const bignum256modm a, const bignum256modm
size_t i = 0;
bignum256modm_element_t carry = 0;
switch (limbsize) {
case 8: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
case 7: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
case 6: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
case 5: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
case 4: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
case 3: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
case 2: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
case 1: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
case 8: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* Falls through. */
case 7: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* Falls through. */
case 6: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* Falls through. */
case 5: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* Falls through. */
case 4: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* Falls through. */
case 3: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* Falls through. */
case 2: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* Falls through. */
case 1: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* Falls through. */
case 0:
default: out[i] = (a[i] - b[i]) - carry;
}
@ -403,14 +403,14 @@ sub256_modm_batch(bignum256modm out, const bignum256modm a, const bignum256modm
static int
lt256_modm_batch(const bignum256modm a, const bignum256modm b, size_t limbsize) {
switch (limbsize) {
case 8: if (a[8] > b[8]) return 0; if (a[8] < b[8]) return 1;
case 7: if (a[7] > b[7]) return 0; if (a[7] < b[7]) return 1;
case 6: if (a[6] > b[6]) return 0; if (a[6] < b[6]) return 1;
case 5: if (a[5] > b[5]) return 0; if (a[5] < b[5]) return 1;
case 4: if (a[4] > b[4]) return 0; if (a[4] < b[4]) return 1;
case 3: if (a[3] > b[3]) return 0; if (a[3] < b[3]) return 1;
case 2: if (a[2] > b[2]) return 0; if (a[2] < b[2]) return 1;
case 1: if (a[1] > b[1]) return 0; if (a[1] < b[1]) return 1;
case 8: if (a[8] > b[8]) return 0; if (a[8] < b[8]) return 1; /* Falls through. */
case 7: if (a[7] > b[7]) return 0; if (a[7] < b[7]) return 1; /* Falls through. */
case 6: if (a[6] > b[6]) return 0; if (a[6] < b[6]) return 1; /* Falls through. */
case 5: if (a[5] > b[5]) return 0; if (a[5] < b[5]) return 1; /* Falls through. */
case 4: if (a[4] > b[4]) return 0; if (a[4] < b[4]) return 1; /* Falls through. */
case 3: if (a[3] > b[3]) return 0; if (a[3] < b[3]) return 1; /* Falls through. */
case 2: if (a[2] > b[2]) return 0; if (a[2] < b[2]) return 1; /* Falls through. */
case 1: if (a[1] > b[1]) return 0; if (a[1] < b[1]) return 1; /* Falls through. */
case 0: if (a[0] > b[0]) return 0; if (a[0] < b[0]) return 1;
}
return 0;
@ -420,14 +420,14 @@ lt256_modm_batch(const bignum256modm a, const bignum256modm b, size_t limbsize)
static int
lte256_modm_batch(const bignum256modm a, const bignum256modm b, size_t limbsize) {
switch (limbsize) {
case 8: if (a[8] > b[8]) return 0; if (a[8] < b[8]) return 1;
case 7: if (a[7] > b[7]) return 0; if (a[7] < b[7]) return 1;
case 6: if (a[6] > b[6]) return 0; if (a[6] < b[6]) return 1;
case 5: if (a[5] > b[5]) return 0; if (a[5] < b[5]) return 1;
case 4: if (a[4] > b[4]) return 0; if (a[4] < b[4]) return 1;
case 3: if (a[3] > b[3]) return 0; if (a[3] < b[3]) return 1;
case 2: if (a[2] > b[2]) return 0; if (a[2] < b[2]) return 1;
case 1: if (a[1] > b[1]) return 0; if (a[1] < b[1]) return 1;
case 8: if (a[8] > b[8]) return 0; if (a[8] < b[8]) return 1; /* Falls through. */
case 7: if (a[7] > b[7]) return 0; if (a[7] < b[7]) return 1; /* Falls through. */
case 6: if (a[6] > b[6]) return 0; if (a[6] < b[6]) return 1; /* Falls through. */
case 5: if (a[5] > b[5]) return 0; if (a[5] < b[5]) return 1; /* Falls through. */
case 4: if (a[4] > b[4]) return 0; if (a[4] < b[4]) return 1; /* Falls through. */
case 3: if (a[3] > b[3]) return 0; if (a[3] < b[3]) return 1; /* Falls through. */
case 2: if (a[2] > b[2]) return 0; if (a[2] < b[2]) return 1; /* Falls through. */
case 1: if (a[1] > b[1]) return 0; if (a[1] < b[1]) return 1; /* Falls through. */
case 0: if (a[0] > b[0]) return 0; if (a[0] < b[0]) return 1;
}
return 1;