bpo-30726: expat: Fix compiler warnings on Windows 64-bit (#2368)
Explicitly cast on integer downcasting to fix compiler warnings. (cherry picked from libexpat commit 788bff7a3baad1983b15b17c29e19e1a1a795c48)
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@ -198,7 +198,7 @@ static struct siphash *sip24_update(struct siphash *H, const void *src, size_t l
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static uint64_t sip24_final(struct siphash *H) {
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char left = H->p - H->buf;
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char left = (char)(H->p - H->buf);
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uint64_t b = (H->c + left) << 56;
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switch (left) {
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@ -313,7 +313,7 @@ static int sip24_valid(void) {
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sip_tokey(&k, "\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017");
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for (i = 0; i < sizeof in; ++i) {
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in[i] = i;
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in[i] = (unsigned char)i;
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if (siphash24(in, i, &k) != SIP_U8TO64_LE(vectors[i]))
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return 0;
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