###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!)
# SDL_size_add_check_overflow

Add two integers, checking for overflow.

## Header File

Defined in [<SDL3/SDL_stdinc.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_stdinc.h)

## Syntax

```c
SDL_FORCE_INLINE bool SDL_size_add_check_overflow(size_t a, size_t b, size_t *ret);
```

## Function Parameters

|          |         |                                                                      |
| -------- | ------- | -------------------------------------------------------------------- |
| size_t   | **a**   | the first addend.                                                    |
| size_t   | **b**   | the second addend.                                                   |
| size_t * | **ret** | on non-overflow output, stores the addition result, may not be NULL. |

## Return Value

(bool) Returns false on overflow, true if result is added without overflow.

## Remarks

If `a + b` would overflow, return -1.

Otherwise store `a + b` via ret and return 0.

## Thread Safety

It is safe to call this function from any thread.

## Version

This function is available since SDL 3.1.3.

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[CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryStdinc](CategoryStdinc)