Memory.clearPointer

Clears a reference to a variable.

pp must not be NULL.

If the reference is NULL then this function does nothing. Otherwise, the variable is destroyed using destroy and the pointer is set to NULL.

A macro is also included that allows this function to be used without pointer casts. This will mask any warnings about incompatible function types or calling conventions, so you must ensure that your destroy function is compatible with being called as GDestroyNotify using the standard calling convention for the platform that GLib was compiled for; otherwise the program will experience undefined behaviour.

struct Memory
static
void
clearPointer

Parameters

pp void**

a pointer to a variable, struct member etc. holding a pointer

destroy GDestroyNotify

a function to which a gpointer can be passed, to destroy *pp

Meta

Since

2.34