| LIBMAWK_CALL_FUNCTION(3libmawk) | libmawk manual | LIBMAWK_CALL_FUNCTION(3libmawk) |
libmawk_call_function - call an user defined (script) function
#include <libmawk.h> int libmawk_call_function(mawk_state_t *MAWK, const char *fname, CELL *res, const char *argtpes, ...);
int libmawk_call_functionp(mawk_state_t *MAWK,
const char *fname, CELL *res, const char
*argtpes, void **args);
The libmawk_call_function() function looks up an user defined awk function called fname , fills the stack with arguments converted from the varargs and calls the function. The libmawk_call_functionp() performs the same action but avoids using vararg by requiring an array of generic pointers to the function arguments.
Argtype is a zero terminated string for both functions, each character corresponding to an argument. Type characters are described in libmawk_set_cell() manual page.
If res is non-NULL, it is cell_destroyed (regardless of errors) and the return value of the user function is copied into it. The caller shall run libmawk_cell_destroy on it.
Argument m is a libmawk context previously returned by libmawk_initialize() or libmawk_initialize_stage3().
A pointer to the cell returned by the user function. The cell returnedmust be destroyed by the application using libmawk_cell_destroy.
libmawk_initialize_stage(3libmawk), libmawk_initialize(3libmawk), libmawk_cell_destroy(3libmawk), libmawk_set_cell(3libmawk),
| 2009-08-10 | libmawk |