NAME¶
genders_isnode, genders_isattr, genders_isattrval - node, attribute, value check
routines
SYNOPSIS¶
#include <genders.h>
int genders_isnode(genders_t handle, const char *node);
int genders_isattr(genders_t handle, const char *attr);
int genders_isattrval(genders_t handle, const char *attr, const char
*val);
DESCRIPTION¶
genders_isnode() tests if the node pointed to by
node is listed in
the genders file. If
node is NULL, the current node is tested.
genders_isattr() tests if the attribute pointed to by
attr is
listed for some node in the genders file.
genders_isattrval() tests if the attribute pointed to by
attr is
equal to the value pointed to by
val for some node in the genders file.
RETURN VALUES¶
For
genders_isnode(), if
node is listed in the genders file, 1 is
returned. If it is not listed, 0 is returned.
For
genders_isattr(), if
attr is listed in the genders file, 1 is
returned. If it is not listed, 0 is returned.
For
genders_isattrval(), if
attr=
val is listed in the
genders file, 1 is returned. If it is not listed, 0 is returned.
On error, all three return -1 and an error code is returned in
handle.
The error code can be retrieved via
genders_errnum(3) , and a
description of the error code can be retrieved via
genders_strerror(3).
Error codes are defined in genders.h.
ERRORS¶
- GENDERS_ERR_NULLHANDLE
- The handle parameter is NULL. The genders handle
must be created with genders_handle_create(3).
- GENDERS_ERR_NOTLOADED
- genders_load_data(3) has not been called to load
genders data.
- GENDERS_ERR_PARAMETERS
- An incorrect parameter has been passed in.
- GENDERS_ERR_MAGIC
- handle has an incorrect magic number. handle
does not point to a genders handle or handle has been destroyed by
genders_handle_destroy(3).
FILES¶
/usr/include/genders.h
SEE ALSO¶
libgenders(3),
genders_handle_create(3),
genders_load_data(3),
genders_errnum(3),
genders_strerror(3)
