[STDCXX-318] SIGFPE in std::valarray::cshift() on empty array

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.1.2, 4.1.3
• Fix Version/s: 4.2.0
• Component/s: 26. Numerics

Environment

all

• Assignee: Martin Sebor
• Reporter: Martin Sebor
• Created: 09/Jan/07 21:30
• Updated: 10/Oct/07 19:52
• Resolved: 10/Oct/07 19:52

Description

The program below abends with SIGFPE due to division by zero:

$ cat t.cpp && nice gmake t && ./t
#include <cassert>
#include <valarray>

int main ()
{
const std::valarray<int> a;

a.cshift (1);
}
aCC -c -I/nfs/devco/sebor/dev/stdlib/include/ansi -I/usr/include -D_RWSTDDEBUG -mt -D_RWSTD_USE_CONFIG -I/nfs/devco/sebor/dev/stdlib/include -I/build/sebor/aCC-3.70-15S/include -I/nfs/devco/sebor/dev/stdlib/examples/include -Aa +nostl -g +d +DD64 +w +W392 +W655 +W684 +W818 +W819 +W849 t.cpp
aCC t.o -o t -Aa +nostl -Wl,+s -Wl,+vnocompatwarnings -mt +DD64 -L/build/sebor/aCC-3.70-15S/lib -lstd15S -lm
Floating point exception (core dumped)