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Diffstat (limited to 'compiler/rustc_error_codes/src/error_codes/E0745.md')
-rw-r--r-- | compiler/rustc_error_codes/src/error_codes/E0745.md | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/compiler/rustc_error_codes/src/error_codes/E0745.md b/compiler/rustc_error_codes/src/error_codes/E0745.md new file mode 100644 index 000000000..23ee7af30 --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0745.md @@ -0,0 +1,23 @@ +The address of temporary value was taken. + +Erroneous code example: + +```compile_fail,E0745 +# #![feature(raw_ref_op)] +fn temp_address() { + let ptr = &raw const 2; // error! +} +``` + +In this example, `2` is destroyed right after the assignment, which means that +`ptr` now points to an unavailable location. + +To avoid this error, first bind the temporary to a named local variable: + +``` +# #![feature(raw_ref_op)] +fn temp_address() { + let val = 2; + let ptr = &raw const val; // ok! +} +``` |