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Dev Tools · 2h ago

Stop Using #define for Constants in C++: Use const and constexpr Instead

By Meridian48 News Desk · Summarised from DEV Community ·

A developer argues that #define macros should not be used for constants in modern C++ due to lack of type safety and scoping. Instead, const should be used for runtime-immutable values and constexpr for compile-time constants. The article explains the differences between preprocessor, compile-time, and runtime stages.

Meridian48 take
The advice is sound for C++ developers, but the article's title overstates the problem—many experienced devs already know this.
Read the full reporting
You don't know how to use constants in C++. →
DEV Community
c++best-practices
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