diff mbox series

[v1,2/6] gdb support: add gdb::ranges::replace algorithm

Message ID 20260728151700.253720-3-matthieu.longo@arm.com
State New
Headers
Series gdb: introduce file_reader_t to read procfs files |

Checks

Context Check Description
linaro-tcwg-bot/tcwg_gdb_build--master-arm fail Patch failed to apply
linaro-tcwg-bot/tcwg_gdb_build--master-aarch64 fail Patch failed to apply

Commit Message

Matthieu Longo July 28, 2026, 3:16 p.m. UTC 
  Provide a C++17-compatible replacement for the C++20 std::ranges::replace
algorithm, allowing callers to use a consistent interface until GDB
transitions to C++20. The helper should be removed once the C++ standard
library implementation become available.

https://en.cppreference.com/cpp/algorithm/ranges/replace
---
 gdbsupport/array-view.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
diff mbox series

Patch

diff --git a/gdbsupport/array-view.h b/gdbsupport/array-view.h
index 8431d7f5add..f9842ecff30 100644
--- a/gdbsupport/array-view.h
+++ b/gdbsupport/array-view.h
@@ -225,6 +225,22 @@  void copy (gdb::array_view<U> src, gdb::array_view<T> dest)
     std::copy_backward (src.begin (), src.end (), dest.end ());
 }
 
+namespace ranges {
+
+/* Replace all occurrences of a value in the provided range.
+
+   Note: this helper is a reimplementation of std::ranges::replace, only
+   available from C++20 onwards, and consequently, should be replaced by
+   std::ranges::replace once GDB switches to C++20.  */
+
+template <class Range, typename T>
+void replace (Range r, const T &old_value, const T &new_value)
+{
+  std::replace (r.begin (), r.end (), old_value, new_value);
+}
+
+} /* namespace ranges */
+
 /* Compare LHS and RHS for (deep) equality.  That is, whether LHS and
    RHS have the same sizes, and whether each pair of elements of LHS
    and RHS at the same position compares equal.  */