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remove unreachable else branch

This commit is contained in:
zhuna.1024 2022-08-29 21:36:45 +08:00
parent af720f9a3b
commit 9458029eed
1 changed files with 3 additions and 21 deletions
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snappy.cc
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@ -1523,29 +1523,11 @@ size_t Compress(Source* reader, Sink* writer) {
const char* fragment = reader->Peek(&fragment_size);
assert(fragment_size != 0); // premature end of input
const size_t num_to_read = std::min(N, kBlockSize);
size_t bytes_read = fragment_size;
size_t pending_advance = 0;
if (bytes_read >= num_to_read) {
// Buffer returned by reader is large enough
pending_advance = num_to_read;
fragment_size = num_to_read;
} else {
char* scratch = wmem.GetScratchInput();
std::memcpy(scratch, fragment, bytes_read);
reader->Skip(bytes_read);
while (bytes_read < num_to_read) {
fragment = reader->Peek(&fragment_size);
size_t n = std::min<size_t>(fragment_size, num_to_read - bytes_read);
std::memcpy(scratch + bytes_read, fragment, n);
bytes_read += n;
reader->Skip(n);
}
assert(bytes_read == num_to_read);
fragment = scratch;
fragment_size = num_to_read;
}
// Buffer returned by reader is large enough
pending_advance = num_to_read;
fragment_size = num_to_read;
assert(fragment_size == num_to_read);
// Get encoding table for compression