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Languages & runtimes · #cpp
Replace manual iterator loops with C++20 Ranges views and pipe syntax for lazy, readable data transformations.
Rebuilding a Qt model on every keystroke drops selection and stutters. Put QSortFilterProxyModel between model and view instead — setup, signal contract, and trade-offs.
When a C++ program crashes or corrupts data at random points, a dangling pointer or use‑after‑free is often the culprit. This guide walks through symptoms, root causes, systematic checks, and concrete fixes using smart pointers and ASan.
Switching CMake build types in one shared directory forces full rebuilds. CLion's CMake profiles give each build type its own directory, restoring fast incremental builds and saner debugging.
Declare include paths, compile definitions and transitive links once in a CMake interface library and let linking propagate them. This removes duplication and keeps usage consistent across targets.
Modern CMake solves configuration leakage by using target-based properties instead of global variables. Learn how PUBLIC, PRIVATE, and INTERFACE keywords control dependency propagation with a worked example.
Stop treating RocksDB as a single bucket. Learn how Column Families provide isolated namespaces, independent compaction, and atomic writes to optimize your storage layer.
Decide whether to use std::optional or a sentinel value for representing missing data in C++, weighing safety, storage, and domain constraints.
Pass read-only string parameters as std::string_view by value: what the pointer-plus-length handle buys you, where NUL termination and lifetime break it, and how to check your build.
qt
clion