Hello,
this is not exactly a question related to some ROOT feature, but I am a C++
programmer newby, so I search for answers wherever I can: the RootTalk is a
good place I suppose.
I would like to use the "at" function of <vector> container but during
compilation I get the error message
no matching function for call to `vector<int, allocator<int> >::at (int)'
I don't think my code is important because right after the error during
compilation under ROOT environment I tried a small trial program, pippo.cpp:
#include <vector>
#include <iostream>
void main()
{
std::vector<int> vettore;
vettore.reserve(3);
vettore.clear();
vettore.at(5) = 56;
cout << "Vettore 5 =" << vettore.at(5) << endl;
}
Disgracefully I got newly an error message:
c++ -DHAVE_CONFIG_H -I. -I. -I.. -O2 -O0 -g3 -Wall -fno-exceptions
-fno-check-new -c pippo.cpp
pippo.cpp: In function `int main ()':
pippo.cpp:10: no matching function for call to `vector
allocator >::at (int)'
pippo.cpp:11: no matching function for call to `vector
allocator >::at (int)'
gmake: *** [pippo.o] Error 1
*** failed ***
I also examined the header file stl_vector.h, but i didn't find any "::at"
function. Where is my fault? Can you help me?
Thank you,
Paolo Adragna
Paolo Adragna
INFN Sezione di Pisa
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