Assigning a rand() value to a vector element and then accessing the element
seems to negate setw() - no spaces are added to the output. I attempted to
access the element via iterators as well as integer subscripts, neither caused
any change. The console reported no errors or warnings during compile.
----------- g++ -v output ------------
Using built-in specs.
Target: x86_64-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr
--enable-shared --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --enable-nls
--with-gxx-include-dir=/usr/include/c++/4.2 --program-suffix=-4.2
--enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --enable-mpfr
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu
Thread model: posix
gcc version 4.2.3 (Ubuntu 4.2.3-2ubuntu7)
---------------------- Sample File ---------------
#include <iomanip>
#include <iostream>
#include <vector>
#include <cstdlib>
using namespace std;
void showVector(vector<int> &v);
int main()
{
vector<int> v(100);
for(int i=0; i <v.size(); i++)
{
v[i] = rand();
}
showVector(v);
}
void showVector(vector<int> &v)
{
//------------------------------------------------------
// Display elements of a vector, 10 per line
//------------------------------------------------------
vector<int> ::iterator p ;
int count=0 ;
for(p=v.begin(); p!=v.end(); p++)
{
cout << setw(6) << *p ;
count = (count+1)%10 ;
if( count==0 )
cout << endl ;
}
cout << endl ;
}
--
Summary: rand() combined with vectors negates setw()
Product: gcc
Version: 4.2.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pmaconi at gmail dot com
GCC build triplet: x86_64-linux-gnu
GCC host triplet: x86_64-linux-gnu
GCC target triplet: x86_64-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36178
