174 lines
4.6 KiB
Fortran
174 lines
4.6 KiB
Fortran
! { dg-do run }
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! { dg-options "-std=gnu" }
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!
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! 13.7.53 INT(A [, KIND])
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!
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! Description. Convert to integer type.
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! Class. Elemental function.
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! Arguments.
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! A shall be of type integer, real, or complex,
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! or a boz-literal-constant .
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! KIND (optional) shall be a scalar integer initialization expression.
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!
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! Result Characteristics. Integer. If KIND is present, the kind type
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! parameter is that specified by the value of KIND; otherwise, the
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! kind type parameter is that of default integer type.
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!
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! Result Value.
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!
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! Case (1): If A is of type integer, INT (A) = A.
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!
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! Case (2): If A is of type real, there are two cases:
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! (a) if |A| < 1, INT (A) has the value 0
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! (b) if |A| .ge. 1, INT (A) is the integer whose magnitude is the
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! largest integer that does not exceed the magnitude of A and
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! whose sign is the same as the sign of A.
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!
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! Case (3): If A is of type complex, INT(A) = INT(REAL(A, KIND(A))).
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!
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! Case (4): If A is a boz-literal-constant, it is treated as if it were
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! an int-literal-constant with a kind-param that specifies the
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! representation method with the largest decimal exponent range
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! supported by the processor.
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!
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! Example. INT (3.7) has the value 3.
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!
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module mykinds
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integer, parameter :: ik1 = selected_int_kind(2)
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integer, parameter :: ik2 = selected_int_kind(4)
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integer, parameter :: ik4 = selected_int_kind(9)
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integer, parameter :: ik8 = selected_int_kind(18)
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integer, parameter :: sp = selected_real_kind(6,30)
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integer, parameter :: dp = selected_real_kind(15,300)
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integer, parameter :: ck = kind('a')
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end module mykinds
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program test_int
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use mykinds
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integer(ik1) i1
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integer(ik2) i2
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integer(ik4) i4
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integer(ik8) i8
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real(sp) r4
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real(dp) r8
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complex(sp) c4
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complex(dp) c8
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!
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! Case 1
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!
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i1 = int(-3)
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i2 = int(-3)
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i4 = int(-3)
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i8 = int(-3)
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if (i1 /= -3_ik1 .or. i2 /= -3_ik2) STOP 1
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if (i4 /= -3_ik4 .or. i8 /= -3_ik8) STOP 2
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i1 = int(5, ik1)
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i2 = int(i1, ik2)
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i4 = int(i1, ik4)
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i8 = int(i1, ik8)
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if (i1 /= 5_ik1 .or. i2 /= 5_ik2) STOP 3
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if (i4 /= 5_ik4 .or. i8 /= 5_ik8) STOP 4
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i8 = int(10, ik8)
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i1 = int(i8, ik1)
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i2 = int(i8, ik2)
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i4 = int(i8, ik4)
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if (i1 /= 10_ik1 .or. i2 /= 10_ik2) STOP 5
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if (i4 /= 10_ik4 .or. i8 /= 10_ik8) STOP 6
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!
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! case 2(b)
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!
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r4 = -3.7_sp
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i1 = int(r4, ik1)
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i2 = int(r4, ik2)
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i4 = int(r4, ik4)
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i8 = int(r4, ik8)
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if (i1 /= -3_ik1 .or. i2 /= -3_ik2) STOP 7
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if (i4 /= -3_ik4 .or. i8 /= -3_ik8) STOP 8
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r8 = -3.7_dp
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i1 = int(r8, ik1)
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i2 = int(r8, ik2)
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i4 = int(r8, ik4)
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i8 = int(r8, ik8)
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if (i1 /= -3_ik1 .or. i2 /= -3_ik2) STOP 9
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if (i4 /= -3_ik4 .or. i8 /= -3_ik8) STOP 10
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!
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! Case 2(a)
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!
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r4 = -3.7E-1_sp
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i1 = int(r4, ik1)
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i2 = int(r4, ik2)
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i4 = int(r4, ik4)
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i8 = int(r4, ik8)
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if (i1 /= 0_ik1 .or. i2 /= 0_ik2) STOP 11
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if (i4 /= 0_ik4 .or. i8 /= 0_ik8) STOP 12
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r8 = -3.7E-1_dp
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i1 = int(r8, ik1)
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i2 = int(r8, ik2)
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i4 = int(r8, ik4)
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i8 = int(r8, ik8)
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if (i1 /= 0_ik1 .or. i2 /= 0_ik2) STOP 13
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if (i4 /= 0_ik4 .or. i8 /= 0_ik8) STOP 14
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!
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! Case 3
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!
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c4 = (-3.7E-1_sp,3.7E-1_sp)
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i1 = int(c4, ik1)
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i2 = int(c4, ik2)
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i4 = int(c4, ik4)
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i8 = int(c4, ik8)
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if (i1 /= 0_ik1 .or. i2 /= 0_ik2) STOP 15
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if (i4 /= 0_ik4 .or. i8 /= 0_ik8) STOP 16
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c8 = (-3.7E-1_dp,3.7E-1_dp)
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i1 = int(c8, ik1)
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i2 = int(c8, ik2)
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i4 = int(c8, ik4)
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i8 = int(c8, ik8)
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if (i1 /= 0_ik1 .or. i2 /= 0_ik2) STOP 17
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if (i4 /= 0_ik4 .or. i8 /= 0_ik8) STOP 18
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c4 = (-3.7_sp,3.7_sp)
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i1 = int(c4, ik1)
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i2 = int(c4, ik2)
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i4 = int(c4, ik4)
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i8 = int(c4, ik8)
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if (i1 /= -3_ik1 .or. i2 /= -3_ik2) STOP 19
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if (i4 /= -3_ik4 .or. i8 /= -3_ik8) STOP 20
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c8 = (3.7_dp,3.7_dp)
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i1 = int(c8, ik1)
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i2 = int(c8, ik2)
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i4 = int(c8, ik4)
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i8 = int(c8, ik8)
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if (i1 /= 3_ik1 .or. i2 /= 3_ik2) STOP 21
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if (i4 /= 3_ik4 .or. i8 /= 3_ik8) STOP 22
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!
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! Case 4
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!
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i1 = int(b'0011', ik1)
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i2 = int(b'0011', ik2)
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i4 = int(b'0011', ik4)
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i8 = int(b'0011', ik8)
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if (i1 /= 3_ik1 .or. i2 /= 3_ik2) STOP 23
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if (i4 /= 3_ik4 .or. i8 /= 3_ik8) STOP 24
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i1 = int(o'0011', ik1)
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i2 = int(o'0011', ik2)
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i4 = int(o'0011', ik4)
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i8 = int(o'0011', ik8)
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if (i1 /= 9_ik1 .or. i2 /= 9_ik2) STOP 25
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if (i4 /= 9_ik4 .or. i8 /= 9_ik8) STOP 26
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i1 = int(z'0011', ik1)
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i2 = int(z'0011', ik2)
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i4 = int(z'0011', ik4)
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i8 = int(z'0011', ik8)
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if (i1 /= 17_ik1 .or. i2 /= 17_ik2) STOP 27
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if (i4 /= 17_ik4 .or. i8 /= 17_ik8) STOP 28
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end program test_int
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