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+## Name
+
+shbuf\_create - create a shareable memory buffer
+
+## Synopsis
+```**c++
+#include <SharedBuffer.h>
+
+int shbuf_create(int size, void** buffer);
+```
+
+## Description
+
+Creates a new memory region that can be shared with other processes. The region is only accessible to the calling process by default.
+
+## Return value
+
+If a region is successfully created, `shbuf_create()` stores a pointer to the memory in `buffer` and returns a buffer ID. Otherwise, it returns -1 and sets `errno` to describe the error.
+
+## Errors
+
+* `EINVAL`: `size` is zero or negative.
+* `EFAULT`: `buffer` is not a valid address.
+
+## See also
+
+* [`shbuf_allow_pid`(2)](shbuf_allow_pid.md)