macro_rules! include_str { ($file:expr $(,)?) => { ... }; }
š¬This is a nightly-only experimental API. (
prelude_2024
)Expand description
Includes a UTF-8 encoded file as a string.
The file is located relative to the current file (similarly to how
modules are found). The provided path is interpreted in a platform-specific
way at compile time. So, for instance, an invocation with a Windows path
containing backslashes \
would not compile correctly on Unix.
This macro will yield an expression of type &'static str
which is the
contents of the file.
Ā§Examples
Assume there are two files in the same directory with the following contents:
File āspanish.inā:
adiĆ³s
File āmain.rsā:
ā
fn main() {
let my_str = include_str!("spanish.in");
assert_eq!(my_str, "adiĆ³s\n");
print!("{my_str}");
}
Compiling āmain.rsā and running the resulting binary will print āadiĆ³sā.