add /* FALLTHRU */ comments to silence warnings

diff --git a/tests/ed25519-donna/modm-donna-32bit.h b/tests/ed25519-donna/modm-donna-32bit.h
index dfd76be6688f45c80c5ddd0fa1e6bfdb7c9b2edf..62a5d3bc1ccda9f8749a64c2f45bc66a79c07890 100644 (file)
--- a/tests/ed25519-donna/modm-donna-32bit.h
+++ b/tests/ed25519-donna/modm-donna-32bit.h
@@ -1,4 +1,4 @@
-/*
+ /*
        Public domain by Andrew M. <liquidsun@gmail.com>
 */
 
@@ -384,14 +384,14 @@ 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++; /* FALLTHRU */
+               case 7: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* FALLTHRU */
+               case 6: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* FALLTHRU */
+               case 5: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* FALLTHRU */
+               case 4: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* FALLTHRU */
+               case 3: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* FALLTHRU */
+               case 2: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* FALLTHRU */
+               case 1: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++; /* FALLTHRU */
                case 0: 
                default: out[i] = (a[i] - b[i]) - carry;
        }
@@ -402,15 +402,15 @@ 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 0: if (a[0] > b[0]) return 0; if (a[0] < b[0]) return 1;
+               case 8: if (a[8] > b[8]) return 0; if (a[8] < b[8]) return 1; /* FALLTHRU */
+               case 7: if (a[7] > b[7]) return 0; if (a[7] < b[7]) return 1; /* FALLTHRU */
+               case 6: if (a[6] > b[6]) return 0; if (a[6] < b[6]) return 1; /* FALLTHRU */
+               case 5: if (a[5] > b[5]) return 0; if (a[5] < b[5]) return 1; /* FALLTHRU */
+               case 4: if (a[4] > b[4]) return 0; if (a[4] < b[4]) return 1; /* FALLTHRU */
+               case 3: if (a[3] > b[3]) return 0; if (a[3] < b[3]) return 1; /* FALLTHRU */
+               case 2: if (a[2] > b[2]) return 0; if (a[2] < b[2]) return 1; /* FALLTHRU */
+               case 1: if (a[1] > b[1]) return 0; if (a[1] < b[1]) return 1; /* FALLTHRU */
+               case 0: if (a[0] > b[0]) return 0; if (a[0] < b[0]) return 1; /* FALLTHRU */
        }
        return 0;
 }
@@ -419,15 +419,15 @@ 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 0: if (a[0] > b[0]) return 0; if (a[0] < b[0]) return 1;
+               case 8: if (a[8] > b[8]) return 0; if (a[8] < b[8]) return 1; /* FALLTHRU */
+               case 7: if (a[7] > b[7]) return 0; if (a[7] < b[7]) return 1; /* FALLTHRU */
+               case 6: if (a[6] > b[6]) return 0; if (a[6] < b[6]) return 1; /* FALLTHRU */
+               case 5: if (a[5] > b[5]) return 0; if (a[5] < b[5]) return 1; /* FALLTHRU */
+               case 4: if (a[4] > b[4]) return 0; if (a[4] < b[4]) return 1; /* FALLTHRU */
+               case 3: if (a[3] > b[3]) return 0; if (a[3] < b[3]) return 1; /* FALLTHRU */
+               case 2: if (a[2] > b[2]) return 0; if (a[2] < b[2]) return 1; /* FALLTHRU */
+               case 1: if (a[1] > b[1]) return 0; if (a[1] < b[1]) return 1; /* FALLTHRU */
+               case 0: if (a[0] > b[0]) return 0; if (a[0] < b[0]) return 1; /* FALLTHRU */
        }
        return 1;
 }