Remove mem::transmute used in CStr conversions
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@ -312,7 +312,7 @@ impl CString {
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pub unsafe fn from_raw(ptr: *mut c_char) -> CString {
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let len = libc::strlen(ptr) + 1; // Including the NUL byte
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let slice = slice::from_raw_parts(ptr, len as usize);
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CString { inner: mem::transmute(slice) }
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CString { inner: Box::from_raw(slice as *mut [c_char] as *mut [u8]) }
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}
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/// Transfers ownership of the string to a C caller.
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@ -480,7 +480,7 @@ impl CString {
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/// ```
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#[stable(feature = "into_boxed_c_str", since = "1.20.0")]
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pub fn into_boxed_c_str(self) -> Box<CStr> {
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unsafe { mem::transmute(self.into_inner()) }
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unsafe { Box::from_raw(Box::into_raw(self.into_inner()) as *mut CStr) }
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}
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// Bypass "move out of struct which implements [`Drop`] trait" restriction.
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@ -569,7 +569,7 @@ impl Borrow<CStr> for CString {
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impl<'a> From<&'a CStr> for Box<CStr> {
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fn from(s: &'a CStr) -> Box<CStr> {
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let boxed: Box<[u8]> = Box::from(s.to_bytes_with_nul());
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unsafe { mem::transmute(boxed) }
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unsafe { Box::from_raw(Box::into_raw(boxed) as *mut CStr) }
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}
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}
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@ -593,7 +593,7 @@ impl From<CString> for Box<CStr> {
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impl Default for Box<CStr> {
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fn default() -> Box<CStr> {
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let boxed: Box<[u8]> = Box::from([0]);
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unsafe { mem::transmute(boxed) }
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unsafe { Box::from_raw(Box::into_raw(boxed) as *mut CStr) }
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}
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}
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@ -817,7 +817,7 @@ impl CStr {
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#[inline]
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#[stable(feature = "cstr_from_bytes", since = "1.10.0")]
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pub unsafe fn from_bytes_with_nul_unchecked(bytes: &[u8]) -> &CStr {
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mem::transmute(bytes)
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&*(bytes as *const [u8] as *const CStr)
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}
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/// Returns the inner pointer to this C string.
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@ -913,7 +913,7 @@ impl CStr {
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#[inline]
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn to_bytes_with_nul(&self) -> &[u8] {
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unsafe { mem::transmute(&self.inner) }
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unsafe { &*(&self.inner as *const [c_char] as *const [u8]) }
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}
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/// Yields a [`&str`] slice if the `CStr` contains valid UTF-8.
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@ -1005,7 +1005,8 @@ impl CStr {
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/// ```
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#[stable(feature = "into_boxed_c_str", since = "1.20.0")]
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pub fn into_c_string(self: Box<CStr>) -> CString {
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unsafe { mem::transmute(self) }
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let raw = Box::into_raw(self) as *mut [u8];
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CString { inner: unsafe { Box::from_raw(raw) } }
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}
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}
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