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problem with setw
- To: gcc-bugs at gcc dot gnu dot org
- Subject: problem with setw
- From: John Sibert <jsibert at soest dot hawaii dot edu>
- Date: Thu, 05 Apr 2001 09:53:00 -0400
the i/o manipulator setw(int) does not appear to work properly when it
precedes output of a variable of type double.
I just installed the following version of gcc
$ g++ -v
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs
gcc version 2.96 20000731 (Red Hat Linux 7.0)
The following code does not execute correctly. It appears to pad the fields
precceding the double with '^@' (null ?) characters.
#include <iostream.h>
#include <iomanip.h>
int main(void)
{
double x = 1.2345;
char y[]="2.3456";
int z = 345678;
cout << x << endl;
cout << y << endl;
cout << z << endl;
cout << "double: " << setw(15) << x << setw(15) << x << endl;
cout << "char[]: " << setw(15) << y << setw(15) << y << endl;
cout << "int: " << setw(15) << z << setw(15) << z << endl;
cout << "double: " << setw(15) << x << setfill('x') << setw(15) << x <<
endl;
cout << "char[]: " << setw(15) << y << setfill('y') << setw(15) << y <<
endl;
cout << "int: " << setw(15) << z << setfill('z') << setw(15) << z <<
endl;
return(0);
}
____________________________________
John Sibert, Manager
Pelagic Fisheries Research Program
University of Hawaii at Manoa
1000 Pope Road
Honolulu, HI 96822
United States
Phone: (808) 956-7895
Fax: (808) 956-4104
____________________________________
Washington DC
Phone: (202) 861 2363
Fax: (202) 861 4767
____________________________________
PFRP Web Site: http://www.soest.hawaii.edu/PFRP/
email: jsibert@soest.hawaii.edu
_________________________________