.\"	$NetBSD: prop_dictionary_util.3,v 1.8 2011/10/17 09:24:54 wiz Exp $
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.Dd August 7, 2011
.Dt PROP_DICTIONARY_UTIL 3
.Os
.Sh NAME
.Nm prop_dictionary_util ,
.Nm prop_dictionary_get_dict ,
.Nm prop_dictionary_get_bool ,
.Nm prop_dictionary_set_bool ,
.Nm prop_dictionary_get_int8 ,
.Nm prop_dictionary_get_uint8 ,
.Nm prop_dictionary_set_int8 ,
.Nm prop_dictionary_set_uint8 ,
.Nm prop_dictionary_get_int16 ,
.Nm prop_dictionary_get_uint16 ,
.Nm prop_dictionary_set_int16 ,
.Nm prop_dictionary_set_uint16 ,
.Nm prop_dictionary_get_int32 ,
.Nm prop_dictionary_get_uint32 ,
.Nm prop_dictionary_set_int32 ,
.Nm prop_dictionary_set_uint32 ,
.Nm prop_dictionary_get_int64 ,
.Nm prop_dictionary_get_uint64 ,
.Nm prop_dictionary_set_int64 ,
.Nm prop_dictionary_set_uint64 ,
.Nm prop_dictionary_get_cstring ,
.Nm prop_dictionary_set_cstring ,
.Nm prop_dictionary_get_cstring_nocopy ,
.Nm prop_dictionary_set_cstring_nocopy ,
.Nm prop_dictionary_set_and_rel
.Nd dictionary property collection object utility functions
.Sh LIBRARY
.Lb libprop
.Sh SYNOPSIS
.In libprop/proplib.h
.\"
.Ft bool
.Fn prop_dictionary_get_dict "prop_dictionary_t dict" "const char *key" \
    "prop_dictionary_t *dictp"
.Ft bool
.Fn prop_dictionary_get_bool "prop_dictionary_t dict" "const char *key" \
    "bool *valp"
.Ft bool
.Fn prop_dictionary_set_bool "prop_dictionary_t dict" "const char *key" \
    "bool val"
.\"
.Ft bool
.Fn prop_dictionary_get_int8 "prop_dictionary_t dict" "const char *key" \
    "int8_t *valp"
.Ft bool
.Fn prop_dictionary_get_uint8 "prop_dictionary_t dict" "const char *key" \
    "uint8_t *valp"
.Ft bool
.Fn prop_dictionary_set_int8 "prop_dictionary_t dict" "const char *key" \
    "int8_t val"
.Ft bool
.Fn prop_dictionary_set_uint8 "prop_dictionary_t dict" "const char *key" \
    "uint8_t val"
.\"
.Ft bool
.Fn prop_dictionary_get_int16 "prop_dictionary_t dict" "const char *key" \
    "int16_t *valp"
.Ft bool
.Fn prop_dictionary_get_uint16 "prop_dictionary_t dict" "const char *key" \
    "uint16_t *valp"
.Ft bool
.Fn prop_dictionary_set_int16 "prop_dictionary_t dict" "const char *key" \
    "int16_t val"
.Ft bool
.Fn prop_dictionary_set_uint16 "prop_dictionary_t dict" "const char *key" \
    "uint16_t val"
.\"
.Ft bool
.Fn prop_dictionary_get_int32 "prop_dictionary_t dict" "const char *key" \
    "int32_t *valp"
.Ft bool
.Fn prop_dictionary_get_uint32 "prop_dictionary_t dict" "const char *key" \
    "uint32_t *valp"
.Ft bool
.Fn prop_dictionary_set_int32 "prop_dictionary_t dict" "const char *key" \
    "int32_t val"
.Ft bool
.Fn prop_dictionary_set_uint32 "prop_dictionary_t dict" "const char *key" \
    "uint32_t val"
.\"
.Ft bool
.Fn prop_dictionary_get_int64 "prop_dictionary_t dict" "const char *key" \
    "int64_t *valp"
.Ft bool
.Fn prop_dictionary_get_uint64 "prop_dictionary_t dict" "const char *key" \
    "uint64_t *valp"
.Ft bool
.Fn prop_dictionary_set_int64 "prop_dictionary_t dict" "const char *key" \
    "int64_t val"
.Ft bool
.Fn prop_dictionary_set_uint64 "prop_dictionary_t dict" "const char *key" \
    "uint64_t val"
.\"
.Ft bool
.Fn prop_dictionary_get_cstring "prop_dictionary_t dict" "const char *key" \
    "char **strp"
.Ft bool
.Fn prop_dictionary_set_cstring "prop_dictionary_t dict" "const char *key" \
    "const char *str"
.\"
.Ft bool
.Fn prop_dictionary_get_cstring_nocopy "prop_dictionary_t dict" \
    "const char *key" "const char **strp"
.Ft bool
.Fn prop_dictionary_set_cstring_nocopy "prop_dictionary_t dict" \
    "const char *key" "const char *strp"
.Ft bool
.Fn prop_dictionary_set_and_rel "prop_dictionary_t dict" \
    "const char *key" "prop_object_t obj"
.Sh DESCRIPTION
The
.Nm prop_dictionary_util
family of functions are provided to make getting and setting values in
dictionaries more convenient in some applications.
.Pp
The getters check the type of the returned object and, in some cases, also
ensure that the returned value is within the range implied by the getter's
value type.
.Pp
The setters handle object creation and release for the caller.
.Pp
The
.Fn prop_dictionary_get_cstring
function returns dynamically allocated memory.
See
.Xr prop_string 3
for more information.
.Pp
The
.Fn prop_dictionary_get_cstring_nocopy
and
.Fn prop_dictionary_set_cstring_nocopy
functions do not copy the string that is set or returned.
See
.Xr prop_string 3
for more information.
.Pp
The
.Fn prop_dictionary_set_and_rel
function adds the object to the dictionary and releases it.
The object is also released on failure.
.Sh RETURN VALUES
The
.Nm prop_dictionary_util
getter functions return
.Dv true
if the object exists in the dictionary and the value is in-range, or
.Dv false
otherwise.
.Pp
The
.Nm prop_dictionary_util
setter functions return
.Dv true
if creating the object and storing it in the dictionary is successful, or
.Dv false
otherwise.
.Sh SEE ALSO
.Xr prop_bool 3 ,
.Xr prop_dictionary 3 ,
.Xr prop_number 3 ,
.Xr proplib 3
.Sh HISTORY
The
.Nm proplib
property container object library first appeared in
.Nx 4.0 .