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bpo-40302: Add _Py_bswap32() function to pyport.h #19552

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Merged
vstinner merged 3 commits into from
Apr 17, 2020
Merged

bpo-40302: Add _Py_bswap32() function to pyport.h #19552

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33dba1f
bpo-40302: Add pycore_byteswap.h header file
vstinner Apr 16, 2020
2f688e9
sha256, sha512: avoid temporary variable
vstinner Apr 17, 2020
2e22746
_Py_bswap16()
vstinner Apr 17, 2020
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sha256, sha512: avoid temporary variable
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@vstinner
vstinner committed Apr 17, 2020
commit 2f688e9cea9c62b4abeade865fbb416ff2f56185
5 changes: 2 additions & 3 deletions Modules/sha256module.c
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Original file line number Diff line number Diff line change
Expand Up @@ -58,9 +58,8 @@ typedef struct {
static void longReverse(SHA_INT32 *buffer, int byteCount)
{
byteCount /= sizeof(*buffer);
while (byteCount--) {
SHA_INT32 value = _Py_bswap32(*buffer);
*buffer++ = value;
for (; byteCount--; buffer++) {
*buffer = _Py_bswap32(*buffer);
}
}
#endif
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5 changes: 2 additions & 3 deletions Modules/sha512module.c
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Original file line number Diff line number Diff line change
Expand Up @@ -59,9 +59,8 @@ typedef struct {
static void longReverse(SHA_INT64 *buffer, int byteCount)
{
byteCount /= sizeof(*buffer);
while (byteCount--) {
SHA_INT64 value = _Py_bswap64(*buffer);
*buffer++ = value;
for (; byteCount--; buffer++) {
*buffer = _Py_bswap64(*buffer);
}
}
#endif
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