| ! RUN: %S/test_folding.sh %s %t %f18 |
| ! Test intrinsic function folding edge case (both expected value and messages) |
| ! These tests make assumptions regarding real(4) extrema. |
| |
| #define TEST_ISNAN(v) logical, parameter :: test_##v =.NOT.(v.EQ.v) |
| |
| |
| module real_tests |
| ! Test real(4) intrinsic folding on edge cases (inf and NaN) |
| |
| real(4), parameter :: r4_pmax = 3.4028235E38 |
| real(4), parameter :: r4_nmax = -3.4028235E38 |
| !WARN: invalid argument on division |
| real(4), parameter :: r4_nan = 0._4/0._4 |
| !WARN: division by zero |
| real(4), parameter :: r4_pinf = 1._4/0._4 |
| !WARN: division by zero |
| real(4), parameter :: r4_ninf = -1._4/0._4 |
| |
| !WARN: invalid argument on intrinsic function |
| real(4), parameter :: nan_r4_acos1 = acos(1.1) |
| TEST_ISNAN(nan_r4_acos1) |
| !WARN: invalid argument on intrinsic function |
| real(4), parameter :: nan_r4_acos2 = acos(r4_pmax) |
| TEST_ISNAN(nan_r4_acos2) |
| !WARN: invalid argument on intrinsic function |
| real(4), parameter :: nan_r4_acos3 = acos(r4_nmax) |
| TEST_ISNAN(nan_r4_acos3) |
| !WARN: invalid argument on intrinsic function |
| real(4), parameter :: nan_r4_acos4 = acos(r4_ninf) |
| TEST_ISNAN(nan_r4_acos4) |
| !WARN: invalid argument on intrinsic function |
| real(4), parameter :: nan_r4_acos5 = acos(r4_pinf) |
| TEST_ISNAN(nan_r4_acos5) |
| |
| !WARN: overflow on intrinsic function |
| logical, parameter :: test_exp_overflow = exp(256._4).EQ.r4_pinf |
| end module |
| |
| module parentheses |
| ! Test parentheses in folding (they are kept around constants to keep the |
| ! distinction between variable and expressions and require special care). |
| real(4), parameter :: x_nop = 0.1_4 |
| real(4), parameter :: x_p = (x_nop) |
| logical, parameter :: test_parentheses1 = acos(x_p).EQ.acos(x_nop) |
| end module |
| |
| module specific_extremums |
| ! f18 accepts all type kinds for the arguments of specific extremum intrinsics |
| ! instead of of only default kind (or double precision for DMAX1 and DMIN1). |
| ! This extensions is implemented by using the related generic intrinsic and |
| ! converting the result. |
| ! The tests below are cases where an implementation that converts the arguments to the |
| ! standard required types instead would give different results than the implementation |
| ! specified for f18 (converting the result). |
| integer(8), parameter :: max_i32_8 = 2_8**31-1 |
| integer, parameter :: expected_min0 = int(min(max_i32_8, 2_8*max_i32_8), 4) |
| !WARN: argument types do not match specific intrinsic 'min0' requirements; using 'min' generic instead and converting the result to INTEGER(4) if needed |
| integer, parameter :: result_min0 = min0(max_i32_8, 2_8*max_i32_8) |
| ! result_min0 would be -2 if arguments were converted to default integer. |
| logical, parameter :: test_min0 = expected_min0 .EQ. result_min0 |
| |
| real, parameter :: expected_amax0 = real(max(max_i32_8, 2_8*max_i32_8), 4) |
| !WARN: argument types do not match specific intrinsic 'amax0' requirements; using 'max' generic instead and converting the result to REAL(4) if needed |
| real, parameter :: result_amax0 = amax0(max_i32_8, 2_8*max_i32_8) |
| ! result_amax0 would be 2.1474836E+09 if arguments were converted to default integer first. |
| logical, parameter :: test_amax0 = expected_amax0 .EQ. result_amax0 |
| end module |