4 ms·

Rust doesn't allow assignment in conditionals. https://locka99.gitbooks.io/a-guide-to-porting-c-to-rust/content/porting_from_cpp/assignments_in_conditionals.ht

• _3u10 5y ago
  It does, in fact the article you posted, shows you exactly when rust allows assignment in conditionals. As long as you're initializing a variable, it's allowed, if you're not initializing you'll have to use a block expression.
  • capitainenemo 5y ago
    Should have just used this sentence - which also directly covers parent's case. "Rust does not allow assignment within simple expressions so they will fail to compile. This is done to prevent subtle errors with = being used instead of ==." Better?