GLibwarning_once

since: 2.64

#define g_warning_once (
  ...
)

Logs a warning only once.

g_warning_once() calls g_warning() with the passed message the first time the statement is executed; subsequent times it is a no-op.

Note! On platforms where the compiler doesn’t support variadic macros, the warning is printed each time instead of only once.

Available since: 2.64

This function is not directly available to language bindings.

...

Type: -

Format string, followed by parameters to insert into the format string (as with printf()).