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! RUN: %S/test_errors.sh %s %t %f18 -Mstandard -Werror
! Issue 458 -- semantic checks for a normal DO loop. The DO variable
! and the initial, final, and step expressions must be INTEGER if the
! options for standard conformance and turning warnings into errors
! are both in effect. This test turns on the options for standards
! conformance and turning warnings into errors. This produces error
! messages for the cases where REAL and DOUBLE PRECISION variables
! and expressions are used in the DO controls.
! C1120 -- DO variable (and associated expressions) must be INTEGER.
! This is extended by allowing REAL and DOUBLE PRECISION
MODULE share
INTEGER :: intvarshare
REAL :: realvarshare
DOUBLE PRECISION :: dpvarshare
END MODULE share
PROGRAM do_issue_458
USE share
IMPLICIT NONE
INTEGER :: ivar
REAL :: rvar
DOUBLE PRECISION :: dvar
LOGICAL :: lvar
COMPLEX :: cvar
CHARACTER :: chvar
INTEGER, DIMENSION(3) :: avar
TYPE derived
REAL :: first
INTEGER :: second
END TYPE derived
TYPE(derived) :: devar
INTEGER, POINTER :: pivar
REAL, POINTER :: prvar
DOUBLE PRECISION, POINTER :: pdvar
LOGICAL, POINTER :: plvar
INTERFACE
SUBROUTINE sub()
END SUBROUTINE sub
FUNCTION ifunc()
END FUNCTION ifunc
END INTERFACE
PROCEDURE(ifunc), POINTER :: pifunc => NULL()
! DO variables
! INTEGER DO variable
DO ivar = 1, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! REAL DO variable
DO rvar = 1, 10, 3
PRINT *, "rvar is: ", rvar
END DO
! DOUBLE PRECISISON DO variable
DO dvar = 1, 10, 3
PRINT *, "dvar is: ", dvar
END DO
! Pointer to INTEGER DO variable
ALLOCATE(pivar)
DO pivar = 1, 10, 3
PRINT *, "pivar is: ", pivar
END DO
! Pointer to REAL DO variable
ALLOCATE(prvar)
DO prvar = 1, 10, 3
PRINT *, "prvar is: ", prvar
END DO
! Pointer to DOUBLE PRECISION DO variable
ALLOCATE(pdvar)
DO pdvar = 1, 10, 3
PRINT *, "pdvar is: ", pdvar
END DO
! CHARACTER DO variable
!ERROR: DO controls should be INTEGER
DO chvar = 1, 10, 3
PRINT *, "chvar is: ", chvar
END DO
! LOGICAL DO variable
!ERROR: DO controls should be INTEGER
DO lvar = 1, 10, 3
PRINT *, "lvar is: ", lvar
END DO
! COMPLEX DO variable
!ERROR: DO controls should be INTEGER
DO cvar = 1, 10, 3
PRINT *, "cvar is: ", cvar
END DO
! Derived type DO variable
!ERROR: DO controls should be INTEGER
DO devar = 1, 10, 3
PRINT *, "devar is: ", devar
END DO
! Pointer to LOGICAL DO variable
ALLOCATE(plvar)
!ERROR: DO controls should be INTEGER
DO plvar = 1, 10, 3
PRINT *, "plvar is: ", plvar
END DO
! SUBROUTINE DO variable
!ERROR: DO control must be an INTEGER variable
DO sub = 1, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! FUNCTION DO variable
!ERROR: DO control must be an INTEGER variable
DO ifunc = 1, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! POINTER to FUNCTION DO variable
!ERROR: DO control must be an INTEGER variable
DO pifunc = 1, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! Array DO variable
!ERROR: Must be a scalar value, but is a rank-1 array
DO avar = 1, 10, 3
PRINT *, "plvar is: ", plvar
END DO
! Undeclared DO variable
!ERROR: No explicit type declared for 'undeclared'
DO undeclared = 1, 10, 3
PRINT *, "plvar is: ", plvar
END DO
! Shared association INTEGER DO variable
DO intvarshare = 1, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! Shared association REAL DO variable
DO realvarshare = 1, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! Shared association DOUBLE PRECISION DO variable
DO dpvarshare = 1, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! Initial expressions
! REAL initial expression
DO ivar = rvar, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! DOUBLE PRECISION initial expression
DO ivar = dvar, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! Pointer to INTEGER initial expression
DO ivar = pivar, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! Pointer to REAL initial expression
DO ivar = prvar, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! Pointer to DOUBLE PRECISION initial expression
DO ivar = pdvar, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! LOGICAL initial expression
!ERROR: DO controls should be INTEGER
DO ivar = lvar, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! COMPLEX initial expression
!ERROR: DO controls should be INTEGER
DO ivar = cvar, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! Derived type initial expression
!ERROR: DO controls should be INTEGER
DO ivar = devar, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! Pointer to LOGICAL initial expression
!ERROR: DO controls should be INTEGER
DO ivar = plvar, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! Invalid initial expression
!ERROR: Integer literal is too large for INTEGER(KIND=4)
DO ivar = -2147483648_4, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! Final expression
! REAL final expression
DO ivar = 1, rvar, 3
PRINT *, "ivar is: ", ivar
END DO
! DOUBLE PRECISION final expression
DO ivar = 1, dvar, 3
PRINT *, "ivar is: ", ivar
END DO
! Pointer to INTEGER final expression
DO ivar = 1, pivar, 3
PRINT *, "ivar is: ", ivar
END DO
! Pointer to REAL final expression
DO ivar = 1, prvar, 3
PRINT *, "ivar is: ", ivar
END DO
! Pointer to DOUBLE PRECISION final expression
DO ivar = pdvar, 10, 3
PRINT *, "ivar is: ", ivar
END DO
! COMPLEX final expression
!ERROR: DO controls should be INTEGER
DO ivar = 1, cvar, 3
PRINT *, "ivar is: ", ivar
END DO
! Invalid final expression
!ERROR: Integer literal is too large for INTEGER(KIND=4)
DO ivar = 1, -2147483648_4, 3
PRINT *, "ivar is: ", ivar
END DO
! Step expression
! REAL step expression
DO ivar = 1, 10, rvar
PRINT *, "ivar is: ", ivar
END DO
! DOUBLE PRECISION step expression
DO ivar = 1, 10, dvar
PRINT *, "ivar is: ", ivar
END DO
! Pointer to INTEGER step expression
DO ivar = 1, 10, pivar
PRINT *, "ivar is: ", ivar
END DO
! Pointer to REAL step expression
DO ivar = 1, 10, prvar
PRINT *, "ivar is: ", ivar
END DO
! Pointer to DOUBLE PRECISION step expression
DO ivar = 1, 10, pdvar
PRINT *, "ivar is: ", ivar
END DO
! COMPLEX Step expression
!ERROR: DO controls should be INTEGER
DO ivar = 1, 10, cvar
PRINT *, "ivar is: ", ivar
END DO
! Invalid step expression
!ERROR: Integer literal is too large for INTEGER(KIND=4)
DO ivar = 1, 10, -2147483648_4
PRINT *, "ivar is: ", ivar
END DO
END PROGRAM do_issue_458
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