vinothmct
Member level 1
I working on low level C functions so i find a lot of code complex . Can someone explain me this piece of code?
Here enum is nested inside a structure .
If condition is checked here total enum variable req.pibattr is checked against a member of enum. I have checked values are not assigned to
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req.pib_attr
..
How the condition will be executed .
Code:
if (req.pib_attr == ZB_PHY_PIB_CURRENT_CHANNEL)
zb_mlme_get_request_t req;
typedef struct zb_mlme_get_request_s
{
zb_mac_pib_attr_t pib_attr;
zb_uint8_t pib_index;
} ZB_PACKED_STRUCT
zb_mlme_get_request_t;
typedef enum
{
/* PHY PIB */
ZB_PHY_PIB_CURRENT_CHANNEL = 0x00,
ZB_PHY_PIB_CURRENT_PAGE = 0x04,
/* MAC PIB */
ZB_PIB_ATTRIBUTE_ACK_WAIT_DURATION = 0x40,
ZB_PIB_ATTRIBUTE_ASSOCIATION_PERMIT = 0x41,
ZB_PIB_ATTRIBUTE_AUTO_REQUEST = 0x42,
ZB_PIB_ATTRIBUTE_BATT_LIFE_EXT = 0x43,
ZB_PIB_ATTRIBUTE_BATT_LIFE_EXT_PERIODS = 0x44,
ZB_PIB_ATTRIBUTE_BEACON_PAYLOAD = 0x45,
ZB_PIB_ATTRIBUTE_BEACON_PAYLOAD_LENGTH = 0x46,
ZB_PIB_ATTRIBUTE_BEACON_ORDER = 0x47,
ZB_PIB_ATTRIBUTE_BEACON_TX_TIME = 0x48,
ZB_PIB_ATTRIBUTE_BSN = 0x49,
ZB_PIB_ATTRIBUTE_COORD_EXTEND_ADDRESS = 0x4a,
ZB_PIB_ATTRIBUTE_COORD_SHORT_ADDRESS = 0x4b,
ZB_PIB_ATTRIBUTE_DSN = 0x4c,
ZB_PIB_ATTRIBUTE_TIMESTAMP_SUPPORTED = 0x5c,
ZB_PIB_ATTRIBUTE_SECURITY_ENABLED = 0x5d
} zb_mac_pib_attr_t;Here enum is nested inside a structure .
If condition is checked here total enum variable req.pibattr is checked against a member of enum. I have checked values are not assigned to
Collapse | Copy Code
req.pib_attr
..
How the condition will be executed .
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