al_cstr(3)al_cstr(3)NAMEal_cstr - Allegro 5 API
SYNOPSIS
#include <allegro5/allegro.h>
const char *al_cstr(const ALLEGRO_USTR *us)
DESCRIPTION
Get a char * pointer to the data in a string. This pointer will only
be valid while the underlying string is not modified and not destroyed.
The pointer may be passed to functions expecting C-style strings, with
the following caveats:
· ALLEGRO_USTRs are allowed to contain embedded NUL ('') bytes. That
means al_ustr_size(u) and strlen(al_cstr(u)) may not agree.
· An ALLEGRO_USTR may be created in such a way that it is not NUL ter‐
minated. A string which is dynamically allocated will always be NUL
terminated, but a string which references the middle of another
string or region of memory will not be NUL terminated.
· If the ALLEGRO_USTR references another string, the returned C string
will point into the referenced string. Again, no NUL terminator will
be added to the referenced string.
SEE ALSOal_ustr_to_buffer(3), al_cstr_dup(3)Allegro reference manualal_cstr(3)