Question

I need to get the value for the particular key in the map,

id val = [m_cAppIdMap valueForKey:wTimerIds];

where wTimerIds is a unsigned short integer.

Runtime exception:EXC_BAD_ACCESS

Warning: passing argument 1 of
‘valueForKey:’ makes pointer from
integer without a cast

EDITED:

 NSNumber* val = [m_cAppIdMap valueForKey:[NSNumber numberWithUnsignedShort:wTimerIds]];

The warning i’m getting is,
incompatible Objective-C types ‘struct NSNumber *’, expected ‘struct NSString *’ when
passing argument 1 of ‘valueForKey:’ from distinct Objective-C type

The runtime exception i’m getting is,
[NSCFNumber length]: unrecognized selector sent to instance 0x100110c20

I am storing the the key as a unsignedshort in the dictioanry.so i’m trying to search for the value in the dictionary with that data type.

Answer 1

You should use

NSNumber *wTimerIdsNum = [NSNumber numberWithInt:wTimerIds];
id val = [m_cAppIdMap objectForKey:wTimerIdsNum];