From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Tyler Veness Date: Sat, 8 Feb 2025 13:42:36 -0800 Subject: [PATCH 05/10] Replace std::views::zip() --- include/sleipnir/autodiff/gradient_expression_graph.hpp | 5 ++++- include/sleipnir/optimization/problem.hpp | 8 +++++--- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/include/sleipnir/autodiff/gradient_expression_graph.hpp b/include/sleipnir/autodiff/gradient_expression_graph.hpp index 275c30b76d34efe7ee1608cd4eedfa54ab2dc1ec..c0e3c161343175837abcb25fb22da0c611a44799 100644 --- a/include/sleipnir/autodiff/gradient_expression_graph.hpp +++ b/include/sleipnir/autodiff/gradient_expression_graph.hpp @@ -161,7 +161,10 @@ class GradientExpressionGraph { } } } else { - for (const auto& [col, node] : std::views::zip(m_col_list, m_top_list)) { + for (size_t i = 0; i < m_top_list.size(); ++i) { + const auto& col = m_col_list[i]; + const auto& node = m_top_list[i]; + // Append adjoints of wrt to sparse matrix triplets if (col != -1 && node->adjoint != Scalar(0)) { triplets.emplace_back(row, col, node->adjoint); diff --git a/include/sleipnir/optimization/problem.hpp b/include/sleipnir/optimization/problem.hpp index 61c5de59d8c5f4d582eff4f650c66c8d50e181a0..6acd2f655a4b35d087ff365c2a2917b015b03b32 100644 --- a/include/sleipnir/optimization/problem.hpp +++ b/include/sleipnir/optimization/problem.hpp @@ -715,9 +715,11 @@ class Problem { for (const auto& constraint : constraints) { ++counts[slp::to_underlying(constraint.type())]; } - for (const auto& [count, name] : - std::views::zip(counts, std::array{"empty", "constant", "linear", - "quadratic", "nonlinear"})) { + for (size_t i = 0; i < counts.size(); ++i) { + constexpr std::array names{"empty", "constant", "linear", + "quadratic", "nonlinear"}; + const auto& count = counts[i]; + const auto& name = names[i]; if (count > 0) { slp::println(" ↳ {} {}", count, name); }