#2216: Fix compile errors with newer version of fmt

Author: JacobDomagala

src/vt/collective/reduce/reduce_manager.h

@@ -47,6 +47,7 @@
 #include "vt/collective/reduce/reduce_scope.h"
 #include "vt/collective/tree/tree.h"
 
+#include <memory>
 namespace vt { namespace collective { namespace reduce {
 
 struct Reduce;

src/vt/elm/elm_id.h

@@ -128,7 +128,7 @@ struct formatter<::vt::elm::ElementIDStruct> {
   /// Formats the epoch using the parsed format specification (presentation)
   /// stored in this formatter.
   template <typename FormatContext>
-  auto format(::vt::elm::ElementIDStruct const& e, FormatContext& ctx) {
+  auto format(::vt::elm::ElementIDStruct const& e, FormatContext& ctx) const {
     std::string id_format =
       presentation == 'b' ? "{:b}" : (presentation == 'd' ? "{:d}" : "{:x}");
     auto fmt_str = "(" + id_format + ",{},{},{})";

src/vt/epoch/epoch_type.h

@@ -142,7 +142,7 @@ struct formatter<::vt::epoch::EpochType> {
   /// Formats the epoch using the parsed format specification (presentation)
   /// stored in this formatter.
   template <typename FormatContext>
-  auto format(::vt::epoch::EpochType const& e, FormatContext& ctx) {
+  auto format(::vt::epoch::EpochType const& e, FormatContext& ctx) const {
     return format_to(
       ctx.out(),
       presentation == 'b' ? "{:b}" : (presentation == 'd' ? "{:d}" : "{:x}"),

src/vt/rdma/rdma_common.h

@@ -122,7 +122,7 @@ VT_FMT_NAMESPACE_BEGIN
 template <>
 struct formatter<::vt::rdma::Type> : formatter<std::string_view> {
   template <typename FormatContext>
-  auto format(::vt::rdma::Type t, FormatContext& ctx) {
+  auto format(::vt::rdma::Type t, FormatContext& ctx) const {
     std::string_view name = "Unknown";
     switch (t) {
     case ::vt::rdma::Type::Get:

src/vt/termination/interval/interval.h

@@ -245,7 +245,7 @@ struct formatter<::vt::term::interval::Interval<DomainT, sentinel>>
   template <typename FormatContext>
   auto format(
     const ::vt::term::interval::Interval<DomainT, sentinel>& interval,
-    FormatContext& ctx) {
+    FormatContext& ctx) const {
     return format_to(
       ctx.out(), "Interval[{}, {}]", interval.lower(), interval.upper());
   }

src/vt/timing/timing.h

@@ -65,20 +65,19 @@ TimeType getCurrentTime();
 
 VT_FMT_NAMESPACE_BEGIN
 
-  template <typename FormatContext>
-  auto format(::vt::TimeTypeWrapper const& t, FormatContext& ctx) {
-    return fmt::format_to(
-      ctx.out(), "{}",
-      to_engineering_string(t.seconds(), 5, eng_exponential, "s")
-    );
+template<>
+struct formatter<::vt::TimeTypeWrapper> {
+  template<typename ParseContext>
+  constexpr auto parse(ParseContext& ctx) {
+    return ctx.begin();
   }
-};
 
-  template <typename FormatContext>
-  auto format(::vt::TimeTypeWrapper const& t, FormatContext& ctx) {
+  template<typename FormatContext>
+  auto format(::vt::TimeTypeWrapper const& t, FormatContext& ctx) const {
     return fmt::format_to(
       ctx.out(), "{}",
-      to_engineering_string(t.seconds(), 3, eng_exponential, "s"));
+      to_engineering_string(t.seconds(), 5, eng_exponential, "s")
+    );
   }
 };
 

src/vt/topos/index/dense/dense_array.h

@@ -166,7 +166,7 @@ struct formatter<::vt::index::DenseIndexArray<IndexType, ndim>>
   auto format(
     const ::vt::index::DenseIndexArray<IndexType, ndim>& idx,
     FormatContext& ctx
-  ) {
+  ) const {
     return formatter<std::string>::format(idx.toString(), ctx);
   }
 };

src/vt/vrt/collection/balance/temperedlb/criterion.h

@@ -99,7 +99,7 @@ template <>
 struct formatter<::vt::vrt::collection::lb::CriterionEnum>
   : formatter<std::string_view> {
   template <typename FormatContext>
-  auto format(::vt::vrt::collection::lb::CriterionEnum c, FormatContext& ctx) {
+  auto format(::vt::vrt::collection::lb::CriterionEnum c, FormatContext& ctx) const {
     std::string_view name = "Unknown";
     switch (c) {
     case ::vt::vrt::collection::lb::CriterionEnum::Grapevine:

tests/unit/lb/test_lbargs_enum_conv.nompi.cc

@@ -152,7 +152,7 @@ VT_FMT_NAMESPACE_BEGIN
   template <>
   struct formatter<::vt::tests::unit::DummyEnum> : formatter<std::string_view> {
     template <typename FormatContext>
-    auto format(::vt::tests::unit::DummyEnum c, FormatContext& ctx) {
+    auto format(::vt::tests::unit::DummyEnum c, FormatContext& ctx) const {
       std::string_view name = "Unknown";
       switch (c) {
       case ::vt::tests::unit::DummyEnum::One: