diff options
Diffstat (limited to 'meap/meap-code/ch3/ch3-anystring-macro.rs')
-rwxr-xr-x | meap/meap-code/ch3/ch3-anystring-macro.rs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/meap/meap-code/ch3/ch3-anystring-macro.rs b/meap/meap-code/ch3/ch3-anystring-macro.rs new file mode 100755 index 0000000..7500e95 --- /dev/null +++ b/meap/meap-code/ch3/ch3-anystring-macro.rs @@ -0,0 +1,10 @@ +macro_rules! string { + ($x:expr) => ( // <1> + String::from(stringify!($x)); // <2> + ) +} + +fn main() { + let s = string!(hello there); + println!("{}", s); +}
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