# SDL_LINE A macro that reports the current line number of the file being compiled. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_assert.h) ## Syntax ```c #define SDL_LINE __LINE__ ``` ## Version This macro is available since SDL 3.2.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryAssert](CategoryAssert)