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Create footnote so body makes sense #130

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Create footnote so body makes sense #130

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6 changes: 5 additions & 1 deletion control-flow.md
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Expand Up @@ -7,7 +7,7 @@ that the braces are mandatory, but parentheses around the expression being teste
are not. Another is that `if` is an expression, so you can use it the same way
as the ternary `?:` operator in C++ (remember from the previous section that if the last
expression in a block is not terminated by a semi-colon, then it becomes the
value of the block). There is no ternary `?:` in Rust. So, the following two
value of the block).<sup>[1](#1)</sup> So, the following two
functions do the same thing:

```rust
Expand Down Expand Up @@ -231,3 +231,7 @@ are always called via the `.` operator (no `->`, more on this in another post).
We saw a few examples above (`len`, `iter`). We'll go into more detail in the
future about how they are defined and called. Most assumptions you might make
from C++ or Java are probably correct.


#### 1
There is no ternary `?:` in Rust.