Re: A problem with Nested Maps

From:

"Heinz Ozwirk" <hozwirk.SPAM@arcor.de>

Newsgroups:

comp.lang.c++

Date:

Sat, 20 May 2006 15:16:14 +0200

Message-ID:

<446f169e$0$4512$9b4e6d93@newsread2.arcor-online.net>

"utab" <umut.tabak@gmail.com> schrieb im Newsbeitrag =
news:1148123844.229011.172440@j73g2000cwa.googlegroups.com...

Dear all,

I am trying to create a look-up table for a text search and =

replacement

class which will be used with a commercial software(MCS NASTRAN, I
guess you may have heard that before ).

I want to create a table like

vector<string> ===mapping=== (vector<string>, =

vector<int>)

more clearly, as an example:

GRID GRID 1
                 ID 2
                 CP 3
                 X1 4
                 X2 5
                 X3 6
                 CD 7
                 PS 8
                 SEID 9

Here there will be another entry like this

Field1 string1 int1
                 . .
                 . .
                 string9 int2

Looks like you first need a map<string, int> to store pairs like (ID, =
2), (CP, 3) ... That should be simple:

    typedef std::map<std::string, int> MapStringToInt;

Then to map GRID to the first group of pairs, Field1 to the next group =
etc. you should use a map from string to MapStringToInt:

    typedef std::map<std::string, MapStringToInt> MapStringToMap;

Now you can create a map to maps and populate it:

    MapStringToMap metaMap;
    metaMap["GRID"].insert(MapStringToInt::value_type("GRID", 1));
    metaMap["GRID"].insert(MapStringToInt::value_type("ID", 2));
    ...
    metaMap["Fields1"].insert(MapStringToInt::value_type("string1, =
int1));
    metaMap["Fields1"].insert(MapStringToInt::value_type("string2, =
int2));
    ...

HTH
    Heinz