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| al_cstr(3) | al_cstr(3) |
NAME
al_cstr - Allegro 5 APISYNOPSIS
-
#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 ALLEGRO_USTR(3) object 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 ('\0') 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 terminated. 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 ALSO
al_ustr_to_buffer(3), al_cstr_dup(3)| Allegro reference manual |
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