Compiler and Vendor Documentation

Compiler and Vendor Documentation

Reference links for MSVC, GCC, Clang, and implementation-specific compiler or library behavior.

Compiler and Vendor Documentation

Major compiler docs

Microsoft C++ documentation: MSVC options, language notes, diagnostics, debugging, and Windows-focused workflows.
GCC online docs: GNU compiler options, extensions, and libstdc++ documentation.
Clang documentation: compiler flags, diagnostics, sanitizers, static analysis, and LLVM/Clang tooling.

When to use these

Use vendor docs when warnings, flags, ABI notes, extension behavior, or standard-library implementation details differ across toolchains.
Use them alongside Compiler Explorer when you want to compare observed behavior against documented options.

When to start here

a program behaves differently across compilers
you need the exact meaning of a warning, flag, extension, or library implementation note
you are debugging platform-specific behavior or toolchain-specific diagnostics

Quick decision guide

Use MSVC docs when the issue is Windows-focused, MSVC-flag-specific, or tied to the Microsoft standard library/runtime.
Use GCC docs when the issue is about GNU extensions, libstdc++ behavior, or GNU toolchain flags.
Use Clang docs when the issue involves sanitizers, diagnostics tuning, static analysis, or LLVM/Clang-specific behavior.

Example in practice

Pick one resource from this page.
Use it to answer one concrete question about syntax, tooling, or workflow.
Bring the result back into a local example or project build.