ffi_free#

Release memory obtained from alloc.

Synopsis#

Peta::FFI::free($ptr);

What you get back#

Always 1.

Edge cases#

  • Zero or undef pointer - silently ignored, like free(NULL).

  • Double free / foreign pointers - undefined behaviour; only pass addresses obtained from alloc, exactly once. Memory a C library allocated is released by that library’s own function (PQclear, mysql_free_result, …), never by free.