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221
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1 ! RUN: %S/test_errors.sh %s %t %flang_fc1
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223
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2 ! REQUIRES: shell
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173
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3 ! Testing 15.6.2.2 point 4 (What function-name refers to depending on the
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4 ! presence of RESULT).
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5
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6
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7 module m_no_result
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8 ! Without RESULT, it refers to the result object (no recursive
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9 ! calls possible)
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10 contains
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11 ! testing with data object results
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12 function f1()
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13 real :: x, f1
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14 !ERROR: 'f1' is not a function
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15 x = acos(f1())
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16 f1 = x
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17 x = acos(f1) !OK
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18 end function
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19 function f2(i)
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20 integer i
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21 real :: x, f2
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22 !ERROR: 'f2' is not an array
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23 x = acos(f2(i+1))
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24 f2 = x
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25 x = acos(f2) !OK
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26 end function
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27 function f3(i)
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28 integer i
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29 real :: x, f3(1)
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30 ! OK reference to array result f1
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31 x = acos(f3(i+1))
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32 f3 = x
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33 x = sum(acos(f3)) !OK
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34 end function
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35
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36 ! testing with function pointer results
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37 function rf()
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38 real :: rf
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39 end function
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40 function f4()
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41 procedure(rf), pointer :: f4
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42 f4 => rf
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43 ! OK call to f4 pointer (rf)
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44 x = acos(f4())
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45 !ERROR: Actual argument for 'x=' may not be a procedure
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46 x = acos(f4)
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47 end function
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48 function f5(x)
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49 real :: x
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50 interface
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51 real function rfunc(x)
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52 real, intent(in) :: x
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53 end function
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54 end interface
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55 procedure(rfunc), pointer :: f5
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56 f5 => rfunc
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57 ! OK call to f5 pointer
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58 x = acos(f5(x+1))
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59 !ERROR: Actual argument for 'x=' may not be a procedure
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60 x = acos(f5)
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61 end function
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62 ! Sanity test: f18 handles C1560 violation by ignoring RESULT
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63 function f6() result(f6) !OKI (warning)
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64 end function
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65 function f7() result(f7) !OKI (warning)
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66 real :: x, f7
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67 !ERROR: 'f7' is not a function
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68 x = acos(f7())
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69 f7 = x
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70 x = acos(f7) !OK
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71 end function
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72 end module
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73
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74 module m_with_result
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75 ! With RESULT, it refers to the function (recursive calls possible)
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76 contains
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77
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78 ! testing with data object results
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79 function f1() result(r)
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80 real :: r
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81 r = acos(f1()) !OK, recursive call
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82 !ERROR: Actual argument for 'x=' may not be a procedure
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83 x = acos(f1)
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84 end function
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85 function f2(i) result(r)
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86 integer i
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87 real :: r
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88 r = acos(f2(i+1)) ! OK, recursive call
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89 !ERROR: Actual argument for 'x=' may not be a procedure
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90 r = acos(f2)
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91 end function
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92 function f3(i) result(r)
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93 integer i
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94 real :: r(1)
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95 r = acos(f3(i+1)) !OK recursive call
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96 !ERROR: Actual argument for 'x=' may not be a procedure
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97 r = sum(acos(f3))
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98 end function
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99
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100 ! testing with function pointer results
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101 function rf()
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102 real :: rf
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103 end function
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104 function f4() result(r)
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105 real :: x
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106 procedure(rf), pointer :: r
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107 r => rf
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108 !ERROR: Actual argument for 'x=' may not be a procedure
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109 x = acos(f4()) ! recursive call
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110 !ERROR: Actual argument for 'x=' may not be a procedure
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111 x = acos(f4)
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112 x = acos(r()) ! OK
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113 end function
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114 function f5(x) result(r)
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115 real :: x
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116 procedure(acos), pointer :: r
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117 r => acos
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118 !ERROR: Actual argument for 'x=' may not be a procedure
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119 x = acos(f5(x+1)) ! recursive call
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120 !ERROR: Actual argument for 'x=' may not be a procedure
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121 x = acos(f5)
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122 x = acos(r(x+1)) ! OK
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123 end function
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124
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125 ! testing that calling the result is also caught
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126 function f6() result(r)
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127 real :: x, r
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128 !ERROR: 'r' is not a function
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129 x = r()
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130 end function
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131 end module
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132
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133 subroutine array_rank_test()
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134 real :: x(10, 10), y
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135 !ERROR: Reference to rank-2 object 'x' has 1 subscripts
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136 y = x(1)
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137 !ERROR: Reference to rank-2 object 'x' has 3 subscripts
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138 y = x(1, 2, 3)
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139 end
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