---
name: "SDL_SINT64_C"
section: "3"
platform: "linux"
package: "libsdl3-doc"
version: "3.2.10+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SDL_SINT64_C"
---

# SDL\_SINT64\_C(3)

Append the 64 bit integer suffix to a signed integer literal.

## NAME

SDL\_SINT64\_C - Append the 64 bit integer suffix to a signed integer literal.

## HEADER FILE

Defined in SDL3/SDL\_stdinc.h

## SYNOPSIS

```
#include "SDL3/SDL.h"
```

**#define SDL\_SINT64\_C(c)  c ## LL  /\* or whatever the current compiler uses. \*/**

## DESCRIPTION

This helps compilers that might believe a integer literal larger than 0xFFFFFFFF is overflowing a 32-bit value. Use **SDL\_SINT64\_C(0xFFFFFFFF1)** instead of **0xFFFFFFFF1** by itself.

## AVAILABILITY

This macro is available since SDL 3.2.0.

## SEE ALSO

**•**(3), [**SDL\_UINT64\_C**(3)](/SDL_UINT64_C/3.md)