MOD(A, P)

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Purpose

Remainder function.

Class

Elemental function

Argument type and attributes

A
An INTENT(IN) INTEGER or REAL
P

An INTENT(IN) argument of the same type and kind type parameter as A.

IBM extension begins The kind type parameters can be different if the compiler option –qport=mod is specified. IBM extension ends

Result type and attributes

Same as A.

Result value

  • If P ≠ 0, the value of the result is A - INT(A/P) * P.
  • If P = 0, the result is undefined.

Examples

  • MOD (3.0, 2.0) has the value 1.0.
  • MOD (8, 5) has the value 3.
  • MOD (-8, 5) has the value -3.
  • MOD (8, -5) has the value 3.
  • MOD (-8, -5) has the value -3.
Specific Name Argument Type Result Type Pass As Arg?
MOD default integer default integer yes
AMOD default real default real yes
DMOD double precision real double precision real yes
QMOD REAL(16) REAL(16) yes  1 
Note:
  •  1  IBM extension: the ability to pass the name as an argument.

Related information

For information on alternative behavior for MOD when porting programs to IBM® Open XL Fortran, see the -qport compiler option in the IBM Open XL Fortran Compiler Reference.