I recently asked for a survey of multimap insert with hint behavior, in
support of a paper I'm writing concerning lwg issue 233. My sincere
thanks to Beman Dawes, Raoul Gough, Russell Hind, Bronek Kozicki, Nicola
Musatti, John Potter and Maxim Yegorushkin for helping with that survey.
Since I started work on this paper at least two people I respect very
much have expressed interest in nailing down the "insert without hint"
function a little better. And so in the interest of addressing this
concern, I would like to conduct yet another survey. And thanks again
for any assistance you can provide. I would like to know what the
following program produces for various std::lib implementations:
#include <map>
#include <string>
#include <iostream>
#include <utility>
template <class Map>
void
display(const Map& m)
{
for (typename Map::const_iterator i = m.begin(), e = m.end(); i !=
e; ++i)
std::cout << '(' << i->first << ", " << i->second << ") ";
std::cout << '\n';
}
int main()
{
typedef std::multimap<int, std::string> Map;
typedef std::pair<int, std::string> value_type;
Map m;
m.insert(value_type(3, "three"));
m.insert(value_type(3, "threE"));
m.insert(value_type(3, "thrEe"));
m.insert(value_type(3, "thrEE"));
m.insert(value_type(3, "thRee"));
m.insert(value_type(3, "thReE"));
m.insert(value_type(3, "thREe"));
m.insert(value_type(3, "thREE"));
m.insert(value_type(3, "tHree"));
m.insert(value_type(3, "tHreE"));
m.insert(value_type(3, "tHrEe"));
m.insert(value_type(3, "tHrEE"));
m.insert(value_type(3, "tHRee"));
m.insert(value_type(3, "tHReE"));
m.insert(value_type(3, "tHREe"));
m.insert(value_type(3, "tHREE"));
m.insert(value_type(3, "Three"));
m.insert(value_type(3, "ThreE"));
m.insert(value_type(3, "ThrEe"));
m.insert(value_type(3, "ThrEE"));
m.insert(value_type(3, "ThRee"));
m.insert(value_type(3, "ThReE"));
m.insert(value_type(3, "ThREe"));
m.insert(value_type(3, "ThREE"));
m.insert(value_type(3, "THree"));
m.insert(value_type(3, "THreE"));
m.insert(value_type(3, "THrEe"));
m.insert(value_type(3, "THrEE"));
m.insert(value_type(3, "THRee"));
m.insert(value_type(3, "THReE"));
m.insert(value_type(3, "THREe"));
m.insert(value_type(3, "THREE"));
display(m);
}
Metrowerks produces:
(3, three) (3, threE) (3, thrEe) (3, thrEE) (3, thRee) (3, thReE) (3,
thREe) (3, thREE) (3, tHree) (3, tHreE) (3, tHrEe) (3, tHrEE) (3, tHRee)
(3, tHReE) (3, tHREe) (3, tHREE) (3, Three) (3, ThreE) (3, ThrEe) (3,
ThrEE) (3, ThRee) (3, ThReE) (3, ThREe) (3, ThREE) (3, THree) (3, THreE)
(3, THrEe) (3, THrEE) (3, THRee) (3, THReE) (3, THREe) (3, THREE)
Thanks,
Howard
3  2493 
Howard Hinnant wrote:
[ ... ] I would like to know what the following program produces for various
std::lib implementations:
[ code elided ... ]
VC++ 7.1 stock library:
(3, three) (3, threE) (3, thrEe) (3, thrEE) (3, thRee) (3, thReE)
(3, thREe) (3, thREE) (3, tHree) (3, tHreE) (3, tHrEe) (3, tHrEE)
(3, tHRee) (3, tHReE) (3, tHREe) (3, tHREE) (3, Three) (3, ThreE)
(3, ThrEe) (3, ThrEE) (3, ThRee) (3, ThReE) (3, ThREe) (3, ThREE)
(3, THree) (3, THreE) (3, THrEe) (3, THrEE) (3, THRee) (3, THReE)
(3, THREe) (3, THREE)
VC++ 8.0 Beta 1 stock library:
(3, three) (3, threE) (3, thrEe) (3, thrEE) (3, thRee) (3, thReE)
(3, thREe) (3, thREE) (3, tHree) (3, tHreE) (3, tHrEe) (3, tHrEE)
(3, tHRee) (3, tHReE) (3, tHREe) (3, tHREE) (3, Three) (3, ThreE)
(3, ThrEe) (3, ThrEE) (3, ThRee) (3, ThReE) (3, ThREe) (3, ThREE)
(3, THree) (3, THreE) (3, THrEe) (3, THrEE) (3, THRee) (3, THReE)
(3, THREe) (3, THREE)
libcomo V31 (with Comaeu 4.3.3):
(3, three) (3, threE) (3, thrEe) (3, thrEE) (3, thRee) (3, thReE)
(3, thREe) (3, thREE) (3, tHree) (3, tHreE) (3, tHrEe) (3, tHrEE)
(3, tHRee) (3, tHReE) (3, tHREe) (3, tHREE) (3, Three) (3, ThreE)
(3, ThrEe) (3, ThrEE) (3, ThRee) (3, ThReE) (3, ThREe) (3, ThREE)
(3, THree) (3, THreE) (3, THrEe) (3, THrEE) (3, THRee) (3, THReE)
(3, THREe) (3, THREE)
The stock library for Borland C++ 5.5:
(3, three) (3, threE) (3, thrEe) (3, thrEE) (3, thRee) (3, thReE)
(3, thREe) (3, thREE) (3, tHree) (3, tHreE) (3, tHrEe) (3, tHrEE)
(3, tHRee) (3, tHReE) (3, tHREe) (3, tHREE) (3, Three) (3, ThreE)
(3, ThrEe) (3, ThrEE) (3, ThRee) (3, ThReE) (3, ThREe) (3, ThREE)
(3, THree) (3, THreE) (3, THrEe) (3, THrEE) (3, THRee) (3, THReE)
(3, THREe) (3, THREE)
STLPort 4.5.3 (with BCC 5.5):
(3, three) (3, threE) (3, thrEe) (3, thrEE) (3, thRee) (3, thReE)
(3, thREe) (3, thREE) (3, tHree) (3, tHreE) (3, tHrEe) (3, tHrEE)
(3, tHRee) (3, tHReE) (3, tHREe) (3, tHREE) (3, Three) (3, ThreE)
(3, ThrEe) (3, ThrEE) (3, ThRee) (3, ThReE) (3, ThREe) (3, ThREE)
(3, THree) (3, THreE) (3, THrEe) (3, THrEE) (3, THRee) (3, THReE)
(3, THREe) (3, THREE)
The stock library for MinGW 3.4.2:
(3, three) (3, threE) (3, thrEe) (3, thrEE) (3, thRee) (3, thReE)
(3, thREe) (3, thREE) (3, tHree) (3, tHreE) (3, tHrEe) (3, tHrEE)
(3, tHRee) (3, tHReE) (3, tHREe) (3, tHREE) (3, Three) (3, ThreE)
(3, ThrEe) (3, ThrEE) (3, ThRee) (3, ThReE) (3, ThREe) (3, ThREE)
(3, THree) (3, THreE) (3, THrEe) (3, THrEE) (3, THRee) (3, THReE)
(3, THREe) (3, THREE)
--
Later,
Jerry.
The universe is a figment of its own imagination.
In article <hi***************************@syrcnyrdrs-03-ge0.nyroc.rr.com>,
Howard Hinnant <hi*****@metrowerks.com> wrote: Metrowerks produces:
(3, three) (3, threE) (3, thrEe) (3, thrEE) (3, thRee) (3, thReE) (3,
thREe) (3, thREE) (3, tHree) (3, tHreE) (3, tHrEe) (3, tHrEE) (3, tHRee)
(3, tHReE) (3, tHREe) (3, tHREE) (3, Three) (3, ThreE) (3, ThrEe) (3,
ThrEE) (3, ThRee) (3, ThReE) (3, ThREe) (3, ThREE) (3, THree) (3, THreE)
(3, THrEe) (3, THrEE) (3, THRee) (3, THReE) (3, THREe) (3, THREE)
Sun Studio 10, compiled with -library=stlport4 produces:
(3, three) (3, threE) (3, thrEe) (3, thrEE) (3, thRee) (3, thReE) (3, thREe) (3, thREE) (3, tHree) (3, tHreE) (3, tHrEe) (3, tHrEE) (3, tHRee) (3, tHReE) (3, tHREe) (3, tHREE) (3, Three) (3, ThreE) (3, ThrEe) (3, ThrEE) (3, ThRee) (3, ThReE) (3, ThREe) (3, ThREE) (3, THree) (3, THreE) (3, THrEe) (3, THrEE) (3, THRee) (3, THReE) (3, THREe) (3, THREE)
Howard Hinnant wrote:
<snip> for any assistance you can provide. I would like to know what the
following program produces for various std::lib implementations:
<snip>
Linux (SuSE Pro v9.2 32 bit)
GNU g++ (GCC) 3.3.4 (pre 3.3.5 20040809)
GNU libstdc++-3.3.4-11
(3, three) (3, threE) (3, thrEe) (3, thrEE) (3, thRee) (3, thReE)
(3, thREe) (3, thREE) (3, tHree) (3, tHreE) (3, tHrEe) (3, tHrEE)
(3, tHRee) (3, tHReE) (3, tHREe) (3, tHREE) (3, Three) (3, ThreE)
(3, ThrEe) (3, ThrEE) (3, ThRee) (3, ThReE) (3, ThREe) (3, ThREE)
(3, THree) (3, THreE) (3, THrEe) (3, THrEE) (3, THRee) (3, THReE)
(3, THREe) (3, THREE)
Regards,
Larry
--
Anti-spam address, change each 'X' to '.' to reply directly. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
by: Tanguy Fautré |
last post by:
Hello,
does std::multimap make any guarantee about the insertion order?
for example:
int main()
{
std::multimap<int, int> Map;
|
by: Dennis Jones |
last post by:
Hi,
Is there a way to iterate through a multimap in such a way as to encounter
only the unique keys? In other words, since a multimap allows duplicate
keys, I would like to iterate through the...
|
by: He Shiming |
last post by:
Hi Folks,
Happy holidays! I have a question regarding STL multimap. Basically, the
current multimap<int,int> look like this:
key=>value
1=>10,
1=>20,
1=>30,
|
by: salem.ganzhorn |
last post by:
#include <map>
#include <iostream>
using namespace std;
int main(
int argc,
const char * argv
)
{
|
by: francois.chartrand |
last post by:
Hi,
I would like to know if there is a way to locate a specific pair in a
multimap ?
Example:
std::multimap<int,int> myMap;
std::multimap<int,int>::iterator myMapIterator;
|
by: Nick Keighley |
last post by:
Hi,
I've checked out various documentation for multimap but can't
find anywhere it explicitly stated that insert() invalidates multimap
iterators.
consider this pseudo code:-
int...
|
by: reppisch |
last post by:
Hi Ng,
I have a multiset for keeping elements sorted in a container but key
values may also be equal.
Is there any guaranteed traversal order within the duplicate keys of a
multimap?
When...
|
by: Saile |
last post by:
I want to give an array the values from the specific multimap's key's values.
multimap<string,int> mymultimap;
multimap<string,int>::iterator it;...
|
by: ambarish.mitra |
last post by:
Hi all,
I have a multimap, where key is an int and the value is a class. I can
insert into the multimap, but finding it difficult to retrieve the
value when keys match. I can do this with...
|
by: Charles Arthur |
last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
|
by: BarryA |
last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
|
by: Sonnysonu |
last post by:
This is the data of csv file
1 2 3
1 2 3
1 2 3
1 2 3
2 3
2 3
3
the lengths should be different i have to store the data by column-wise with in the specific length.
suppose the i have to...
|
by: Hystou |
last post by:
There are some requirements for setting up RAID:
1. The motherboard and BIOS support RAID configuration.
2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers,...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
| |
