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Clarify that static variables are not synonymous with global variables #4825

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Clarify that static variables are not synonymous with global variables #4825

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4 changes: 3 additions & 1 deletion src/ch20-01-unsafe-rust.md
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Expand Up @@ -392,7 +392,9 @@ support but which can be problematic with Rust’s ownership rules. If two
threads are accessing the same mutable global variable, it can cause a data
race.

In Rust, global variables are called _static_ variables. Listing 20-10 shows an
Rust doesn’t have a dedicated “global variable” keyword; instead, it has
_static_ variables, which live for the entire program and can be declared at
module scope (globally) or inside a function (locally). Listing 20-10 shows an
example declaration and use of a static variable with a string slice as a
value.

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