Support/PathV2: Implement get_magic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123544 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael J. Spencer
2011-01-15 18:52:33 +00:00
parent cd7f0a1a7f
commit d6cdf1d3cb
4 changed files with 79 additions and 3 deletions

View File

@@ -455,9 +455,11 @@ error_code has_magic(const Twine &path, const Twine &magic, bool &result);
/// @param path Input path.
/// @param len Number of magic bytes to get.
/// @param result Set to the first \a len bytes in the file pointed to by
/// \a path.
/// @results errc::success if result has been successfully set, otherwise a
/// platform specific error_code.
/// \a path. Or the entire file if file_size(path) < len, in which
/// case result.size() returns the size of the file.
/// @results errc::success if result has been successfully set,
/// errc::value_too_large if len is larger then the file pointed to by
/// \a path, otherwise a platform specific error_code.
error_code get_magic(const Twine &path, uint32_t len,
SmallVectorImpl<char> &result);