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add multiple_simple_compression.c

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This commit is contained in:
Yi Jin
2018-12-16 20:45:43 -08:00
parent cce0842c60
commit ea4859ec71
2 changed files with 119 additions and 3 deletions
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7
examples/utils.h
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@@ -51,10 +51,11 @@ static size_t fsize_orDie(const char *filename)
off_t const fileSize = st.st_size;
size_t const size = (size_t)fileSize;
/* if off_t -> size_t type conversion results in discrepancy,
* the file size is too big for at least one type to handle.
/* 1. fileSize should be non-negative,
* 2. if off_t -> size_t type conversion results in discrepancy,
* the file size is too large for type size_t.
*/
if (size != fileSize) { /* narrowcast overflow */
if ((fileSize < 0) || (fileSize != (off_t)size)) {
fprintf(stderr, "%s : filesize too large \n", filename);
exit(ERROR_largeFile);
}