# SDL_size_mul_check_overflow

Multiply 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_mul_check_overflow(size_t a, size_t b, size_t *ret);
```

## Function Parameters

|          |         |                                                                            |
| -------- | ------- | -------------------------------------------------------------------------- |
| size_t   | **a**   | the multiplicand.                                                          |
| size_t   | **b**   | the multiplier.                                                            |
| size_t * | **ret** | on non-overflow output, stores the multiplication result, may not be NULL. |

## Return Value

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

## Remarks

If `a * b` would overflow, return false.

Otherwise store `a * b` via ret and return true.

## Thread Safety

It is safe to call this function from any thread.

## Version

This function is available since SDL 3.2.0.

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