C++ String View Implementations: std::string_view vs boost::string_view vs Folly StringPiece vs Abseil string_view

Mon, 29 Jun 2026 00:00:00 +0000

Introduction

String views represent one of the most important additions to modern C++. The concept is elegantly simple: instead of copying strings or passing const std::string& everywhere, a string view is a non-owning reference to a contiguous sequence of characters — essentially a {const char* data; size_t size;} pair. This eliminates unnecessary copies, enables zero-cost substring operations, and dramatically simplifies APIs that work with string data from multiple sources (string literals, std::string, character arrays, and substrings).

String-View on Pi Stack

C++ String View Implementations: std::string_view vs boost::string_view vs Folly StringPiece vs Abseil string_view

Introduction