terminate called after throwing an instance of 'std::bad_alloc ' what(): St9bad_all

[upadhyad]

Hi everyone !!

i have an interesting problem...hope you people can help.
I am coding in C.
the code is posted below:
here I have a structure with two character vectors.
I have to characters. in them depending on a text file. Arround 76,000 characters in each of them one after the other....But i am not able to do so...the program runs fine for small data...but with these 76,000 characters pushed in each vector one after the other causes the following error while runing
=============== =====
terminate called after throwing an instance of 'std::bad_alloc '
what(): St9bad_alloc
Aborted
=============== ========
am I running out of RAM .. what is the problem???
please help it is urgent!!!

Code removed, please read the posting guidelines

[upadhyad]

why was my code removed???

[upadhyad]

The code is here::::Please do not remove this time it is urgen if you keep removing nobody will be able to see it ...thanks;;;;;; ;;;,

Removed as per posting guidelines
 

[Banfa]

The code is here::::Please do not remove this time it is urgen if you keep removing nobody will be able to see it

And if you read the posting guidelines as suggested in the original edit to your post you would know why your code keeps getting removed.

[Banfa]

It rather depends on the platform you are using but 2 lots of 76000 characters is 152000 bytes of data. This is certainly within the constraints of a modern PC so that suggests that there is another problem with your code.

Before I removed your code I noticed you have vectors of char *, do you allocate memory for all those pointers before using them or at least point them at a buffer somewhere?

[gpraghuram]

Hi,
Dont post the whole code...
Post the part how u have declared the vector and how are u pushing into it.


Raghu

[upadhyad]

Hi all !!
Now I understand ....I am really sorry ........afteral l i am a newbie.
Ok
here is how I define my structure....

struct IDnTime 
    {    
        vector<char *> s;
        vector<char *> g;        
        struct tm theTime;
        struct tm *ptr;            
        time_t t;
    } IDnTimeArray[50];
 

Next I inititalize few char variables and then point them with the pointers like this:(this I did to avoid pushing characters themselves in the vectors....now this should allow me to push the addresses of the characters or the poiters to thode characters in the vector)

 
char Walk ='w',Bike ='b',Car ='c',UrbanPuT ='u',Rail ='r',Notdecided ='n',Activity ='a';
    char *walk =&Walk, *bike =&Bike, *car =&Car, *urbanPuT =&UrbanPuT, *rail =&Rail, *notdecided =&Notdecided, *activity =&Activity;
 

Then i try to push back like this

IDnTimeArray[counter1].s.push_back(&Activity);
IDnTimeArray[counter1].s.push_back(&Walk);
 

and so on.......76,000 character addresses in the vector 's'..and similarly for the vector g as well

IDnTimeArray[counter1].g.push_back(&Activity);
IDnTimeArray[counter1].g.push_back(&Walk);
 

the program compiles fine...gr8..the n I run it ..it runs for 2 or three seconds ...gr8...then as the pushing back operation in the 's' vector of the array of the structures is completed and the g vector is started it stops .....when I run it on my computer the process it terminated here is

terminate called after throwing an instance of 'std::bad_alloc '
what(): St9bad_all
Aborted


i dont get this .....PLEASE HELPi dont get this .....PLEASE HELP

Also few may ask whether I try to fill all the 's' and 'g' vectors of the 50 structure array locations together.......
the answer is NO!...first I approach each structure array element and then i try to fill the s and g vectors of that location(whch is not allowed and the message displayed i mentioned above)...then as i finsh my desired function with these vectors I clear these vectors by

IDnTimeArray[counter1].s.clear();
IDnTimeArray[counter1].g.clear();
 

So the memory is freed......

HELP HELP

[upadhyad]

It rather depends on the platform you are using but 2 lots of 76000 characters is 152000 bytes of data. This is certainly within the constraints of a modern PC so that suggests that there is another problem with your code

the platform used is ubuntu terminal

[weaknessforcats]

A bad_alloc() us an an exception thrown by C++ when it runs out of heap memory.

[upadhyad]

whn I try to push back just one of the vectors and comenting out the pushing back in the g vector the process works fine....and similarly for the g vector.
where can be the problem ???
I tried it with the vector resize option also....but it did not work either