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file_sys/fsmitm_romfsbuild: Utilize a string_view in romfs_calc_path_hash() 

The given string instance doesn't need to be copied entirely, we can
just use a view instead.
This commit is contained in:
Lioncash 2019-04-05 15:11:12 -04:00
parent 66be5150d6
commit 28e36de56f
1 changed files with 3 additions and 1 deletions
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4
src/core/file_sys/fsmitm_romfsbuild.cpp
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@ -23,6 +23,7 @@
*/ */
#include <cstring> #include <cstring>
#include <string_view>
#include "common/alignment.h" #include "common/alignment.h"
#include "common/assert.h" #include "common/assert.h"
#include "core/file_sys/fsmitm_romfsbuild.h" #include "core/file_sys/fsmitm_romfsbuild.h"
@ -97,7 +98,8 @@ struct RomFSBuildFileContext {
VirtualFile source; VirtualFile source;
}; };
static u32 romfs_calc_path_hash(u32 parent, std::string path, u32 start, std::size_t path_len) { static u32 romfs_calc_path_hash(u32 parent, std::string_view path, u32 start,
std::size_t path_len) {
u32 hash = parent ^ 123456789; u32 hash = parent ^ 123456789;
for (u32 i = 0; i < path_len; i++) { for (u32 i = 0; i < path_len; i++) {
hash = (hash >> 5) | (hash << 27); hash = (hash >> 5) | (hash << 27);