9.238. SIGN

9.238 SIGN — Sign copying function

Description:
SIGN(A,B) returns the value of A with the sign of B.
Standard:
Fortran 77 and later
Class:
Elemental function
Syntax:
RESULT = SIGN(A, B)
Arguments:
A Shall be of type INTEGER or REAL
B Shall be of the same type and kind as A
Return value:
The kind of the return value is that of A and B. If B\ge 0 then the result is ABS(A), else it is -ABS(A).
Example:
program test_sign
  print *, sign(-12,1)
  print *, sign(-12,0)
  print *, si