Replacing uses of accumulating fold with sum

This commit is contained in:
Prabhjyot Singh Sodhi 2015-03-02 06:11:39 -05:00
parent fed878710c
commit dbc654ffa8

View file

@ -7,6 +7,7 @@
use libc::{c_char,c_int,c_void,size_t};
use std::borrow::ToOwned;
use std::ffi::CString;
use std::iter::AdditiveIterator;
use std::old_io::timer::sleep;
#[cfg(target_os="linux")]
use std::old_io::File;
@ -380,7 +381,7 @@ fn get_resident_segments() -> Vec<(String, u64)> {
// from the "resident" measurement obtained via /proc/<pid>/statm in
// get_resident(). It's unclear why this difference occurs; for some
// processes the measurements match, but for Servo they do not.
let total = segs.iter().fold(0u64, |total, &(_, size)| total + size);
let total = segs.iter().map(|&(_, size)| size).sum();
segs.push(("resident-according-to-smaps".to_owned(), total));
// Sort by size; the total will be first.