QMap that don't work properly

Stefanoxjx

Hi, I've this code:

QMap<uint8_t, uint8_t> OTable;

OTable.insert( 1, '0');
OTable.insert( 0, '1');
OTable.insert( 5, '2');
OTable.insert( 7, '3');
OTable.insert( 9, '4');
OTable.insert(13, '5');
OTable.insert(15, '6');
OTable.insert(17, '7');
OTable.insert(19, '8');
OTable.insert(21, '9');
OTable.insert( 1, 'A');
OTable.insert( 0, 'B');
OTable.insert( 5, 'C');
OTable.insert( 7, 'D');
OTable.insert( 9, 'E');
OTable.insert(13, 'F');
OTable.insert(15, 'G');
OTable.insert(17, 'H');
OTable.insert(19, 'I');
OTable.insert(21, 'J');
OTable.insert( 2, 'K');
OTable.insert( 4, 'L');
OTable.insert(18, 'M');
OTable.insert(20, 'N');
OTable.insert(11, 'O');
OTable.insert( 3, 'P');
OTable.insert( 6, 'Q');
OTable.insert( 8, 'R');
OTable.insert(12, 'S');
OTable.insert(14, 'T');
OTable.insert(16, 'U');
OTable.insert(10, 'V');
OTable.insert(22, 'W');
OTable.insert(25, 'X');
OTable.insert(24, 'Y');
OTable.insert(23, 'Z');


qDebug() << OTable.key('A'); //Returns 1
qDebug() << OTable.key('Z'); //Returns 23
qDebug() << OTable.key('X'); //Returns 25
qDebug() << OTable.key('0'); //Returns 0
qDebug() << OTable.key('3'); //Returns 0
qDebug() << OTable.key('9'); //Returns 0

I don't understand why if I ask a key value of A-Z it works fine, but if I ask of 0-9 it returns always zero.
I tried to pass ascii code directly, but the result is the same.
I'm a bit confused.
Do you have some ideas?
Thanks.

Stefano

mrjj

Hi
Dont you replace
OTable.insert( 1, '0');
with
OTable.insert( 1, 'A');
? (same key)
docs says
"If there are multiple items with the key key, the most recently inserted item's value is replaced with value."

Christian Ehrlicher

@Stefanoxjx said in QMap that don't work properly:

I'm a bit confused.

You have a map, not a multimap so

OTable.insert( 1, 'A');

overwrites

OTable.insert( 1, '0');

Stefanoxjx

Many thanks for clarification.
I understand the problem :)

Stefano