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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:57:19 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:57:19 +0000 |
commit | a0b8f38ab54ac451646aa00cd5e91b6c76f22a84 (patch) | |
tree | fc451898ccaf445814e26b46664d78702178101d /vendor/memmap2-0.2.3/examples | |
parent | Adding debian version 1.71.1+dfsg1-2. (diff) | |
download | rustc-a0b8f38ab54ac451646aa00cd5e91b6c76f22a84.tar.xz rustc-a0b8f38ab54ac451646aa00cd5e91b6c76f22a84.zip |
Merging upstream version 1.72.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/memmap2-0.2.3/examples')
-rw-r--r-- | vendor/memmap2-0.2.3/examples/cat.rs | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/vendor/memmap2-0.2.3/examples/cat.rs b/vendor/memmap2-0.2.3/examples/cat.rs new file mode 100644 index 000000000..34599af2e --- /dev/null +++ b/vendor/memmap2-0.2.3/examples/cat.rs @@ -0,0 +1,23 @@ +extern crate memmap2; + +use std::env; +use std::fs::File; +use std::io::{self, Write}; + +use memmap2::Mmap; + +/// Output a file's contents to stdout. The file path must be provided as the first process +/// argument. +fn main() { + let path = env::args() + .nth(1) + .expect("supply a single path as the program argument"); + + let file = File::open(path).expect("failed to open the file"); + + let mmap = unsafe { Mmap::map(&file).expect("failed to map the file") }; + + io::stdout() + .write_all(&mmap[..]) + .expect("failed to output the file contents"); +} |