daemon: Remove ‘foreach’ and ‘foreach_reverse’

‘foreach_reverse’ is not used anywhere

* nix/libutil/util.hh (foreach, foreach_reverse): Remove.
* nix/libstore/build.cc (addToWeakGoals): Use ‘std::none_of’ instead of macro ‘foreach’.
(Goal::waiteeDone, Goal::amDone, UserLock::acquire, rewriteHashes,
DerivationGoal::addWantedOutputs, DerivationGoal::haveDerivation,
DerivationGoal::outputsSubstituted, DerivationGoal::repairClosure,
DerivationGoal::inputsRealised, DerivationGoal::tryToBuild,
DerivationGoal::buildDone, DerivationGoal::tryBuildHook,
DerivationGoal::startBuilder, DerivationGoal::runChild,
parseReferenceSpecifiers, DerivationGoal::registerOutputs,
DerivationGoal::checkPathValidity, SubstitutionGoal::tryNext,
SubstitutionGoal::referencesValid, Worker::removeGoal,
Worker::childTerminated, Worker::run, Worker::waitForInput): Use range-based
‘for’ instead of macro ‘foreach’.
* nix/libstore/derivations.cc (writeDerivation, unparseDerivation,
hashDerivationModulo): Likewise.
* nix/libstore/gc.cc (addAdditionalRoots, LocalStore::deletePathRecursive,
LocalStore::canReachRoot, LocalStore::collectGarbage): Likewise.
* nix/libstore/globals.cc (Settings::pack): Likewise.
* nix/libstore/local-store.cc (checkDerivationOutputs, queryValidPaths,
querySubstitutablePaths, querySubstitutablePathInfos, registerValidPaths, verifyStore,
verifyPath): Likewise.
* nix/libstore/misc.cc (computeFSClosure, dfsVisit, topoSortPaths): Likewise.
* nix/libstore/optimise-store.cc (LocalStore::optimisePath_, LocalStore::optimiseStore): Likewise.
* nix/libstore/pathlocks.cc (PathLocks::lockPaths, PathLocks::~PathLocks): Likewise.
* nix/libstore/references.cc (search, scanForReferences): Likewise.
* nix/libstore/store-api.cc (checkStoreName, computeStorePathForText,
StoreAPI::makeValidityRegistration, showPaths, readStorePaths): Likewise.
* nix/libutil/serialise.cc (writeStrings): Likewise.
* nix/libutil/util.cc (concatStringsSep): Likewise.
* nix/nix-daemon/nix-daemon.cc (performOp): Likewise.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

1 files changed, 14 insertions, 14 deletions

diff --git a/nix/libstore/misc.cc b/nix/libstore/misc.cc
index d4e6d1b4af..bc5dec88bf 100644
--- a/nix/libstore/misc.cc
+++ b/nix/libstore/misc.cc
@@ -28,15 +28,15 @@ void computeFSClosure(StoreAPI & store, const Path & path,
 
         if (includeOutputs) {
             PathSet derivers = store.queryValidDerivers(path);
-            foreach (PathSet::iterator, i, derivers)
-                edges.insert(*i);
+            for (auto& i : derivers)
+                edges.insert(i);
         }
 
         if (includeDerivers && isDerivation(path)) {
             PathSet outputs = store.queryDerivationOutputs(path);
-            foreach (PathSet::iterator, i, outputs)
-                if (store.isValidPath(*i) && store.queryDeriver(*i) == path)
-                    edges.insert(*i);
+            for (auto& i : outputs)
+                if (store.isValidPath(i) && store.queryDeriver(i) == path)
+                    edges.insert(i);
         }
 
     } else {
@@ -44,8 +44,8 @@ void computeFSClosure(StoreAPI & store, const Path & path,
 
         if (includeOutputs && isDerivation(path)) {
             PathSet outputs = store.queryDerivationOutputs(path);
-            foreach (PathSet::iterator, i, outputs)
-                if (store.isValidPath(*i)) edges.insert(*i);
+            for (auto& i : outputs)
+                if (store.isValidPath(i)) edges.insert(i);
         }
 
         if (includeDerivers) {
@@ -54,8 +54,8 @@ void computeFSClosure(StoreAPI & store, const Path & path,
         }
     }
 
-    foreach (PathSet::iterator, i, edges)
-        computeFSClosure(store, *i, paths, flipDirection, includeOutputs, includeDerivers);
+    for (auto& i : edges)
+        computeFSClosure(store, i, paths, flipDirection, includeOutputs, includeDerivers);
 }
 
 
@@ -74,11 +74,11 @@ static void dfsVisit(StoreAPI & store, const PathSet & paths,
     if (store.isValidPath(path))
         store.queryReferences(path, references);
 
-    foreach (PathSet::iterator, i, references)
+    for (auto& i : references)
         /* Don't traverse into paths that don't exist.  That can
            happen due to substitutes for non-existent paths. */
-        if (*i != path && paths.find(*i) != paths.end())
-            dfsVisit(store, paths, *i, visited, sorted, parents);
+        if (i != path && paths.find(i) != paths.end())
+            dfsVisit(store, paths, i, visited, sorted, parents);
 
     sorted.push_front(path);
     parents.erase(path);
@@ -89,8 +89,8 @@ Paths topoSortPaths(StoreAPI & store, const PathSet & paths)
 {
     Paths sorted;
     PathSet visited, parents;
-    foreach (PathSet::const_iterator, i, paths)
-        dfsVisit(store, paths, *i, visited, sorted, parents);
+    for (const auto& i : paths)
+        dfsVisit(store, paths, i, visited, sorted, parents);
     return sorted;
 }