SIGN(3F) SysV SIGN(3F)
NAME
sign, isign, dsign - FORTRAN transfer-of-sign intrinsic function
SYNOPSIS
integer i, j, k
real r1, r2, r3
double precision dp1, dp2, dp3
k = isign(i, j)
k = sign(i, j)
r3 = sign(r1, r2)
dp3 = dsign(dp1, dp2)
dp3 = sign(dp1, dp2)
DESCRIPTION
isign returns the magnitude of its first argument with the sign of its
second argument. sign and dsign are its real and double-precision
counterparts, respectively. The generic version is sign and will devolve
to the appropriate type depending on its arguments.