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111
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1 /* Test for diagnostics for Wconversion between floating-point and
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2 integers. C++ equivalent of
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3 gcc/testsuite/gcc.dg/Wconversion-real-integer.c */
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4
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5 /* { dg-do compile }
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6 /* { dg-options "-Wconversion -ftrack-macro-expansion=0" } */
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7 /* { dg-require-effective-target int32plus } */
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8 #include <limits.h>
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9
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10 void fsi (signed int x);
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11 void fui (unsigned int x);
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12 void ffloat (float x);
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13 void fdouble (double x);
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14
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15 float vfloat;
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16 double vdouble;
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17
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18 void h (void)
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19 {
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20 unsigned int ui = 3;
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21 int si = 3;
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22 unsigned char uc = 3;
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23 signed char sc = 3;
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24 float f = 3;
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25 double d = 3;
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26
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27 fsi (3.1f); /* { dg-warning "conversion" } */
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28 si = 3.1f; /* { dg-warning "conversion" } */
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29 fsi (3.1); /* { dg-warning "conversion" } */
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30 si = 3.1; /* { dg-warning "conversion" } */
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31 fsi (d); /* { dg-warning "conversion" } */
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32 si = d; /* { dg-warning "conversion" } */
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33 fui (-1.0); /* { dg-warning "overflow" } */
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34 ui = -1.0; /* { dg-warning "overflow" } */
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35 ffloat (INT_MAX); /* { dg-warning "conversion" } */
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36 vfloat = INT_MAX; /* { dg-warning "conversion" } */
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37 ffloat (16777217); /* { dg-warning "conversion" } */
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38 vfloat = 16777217; /* { dg-warning "conversion" } */
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39 ffloat (si); /* { dg-warning "conversion" } */
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40 vfloat = si; /* { dg-warning "conversion" } */
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41 ffloat (ui); /* { dg-warning "conversion" } */
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42 vfloat = ui; /* { dg-warning "conversion" } */
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43
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44 fsi (3);
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45 si = 3;
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46 fsi (3.0f);
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47 si = 3.0f;
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48 fsi (3.0);
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49 si = 3.0;
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50 fsi (16777217.0f);
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51 si = 16777217.0f;
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52 fsi ((int) 3.1);
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53 si = (int) 3.1;
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54 ffloat (3U);
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55 vfloat = 3U;
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56 ffloat (3);
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57 vfloat = 3;
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58 ffloat (INT_MIN);
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59 vfloat = INT_MIN;
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60 ffloat (uc);
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61 vfloat = uc;
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62 ffloat (sc);
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63 vfloat = sc;
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64
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65 fdouble (UINT_MAX);
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66 vdouble = UINT_MAX;
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67 fdouble (ui);
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68 vdouble = ui;
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69 fdouble (si);
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70 vdouble = si;
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71 }
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72
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73
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74 void fss (signed short x);
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75 void fus (unsigned short x);
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76 void fsc (signed char x);
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77 void fuc (unsigned char x);
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78
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79 void h2 (void)
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80 {
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81 unsigned short int us;
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82 short int ss;
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83 unsigned char uc;
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84 signed char sc;
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85
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86 fss (4294967294.0); /* { dg-warning "conversion" } */
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87 ss = 4294967294.0; /* { dg-warning "conversion" } */
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88 fss (-4294967294.0); /* { dg-warning "conversion" } */
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89 ss = -4294967294.0; /* { dg-warning "conversion" } */
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90 fus (4294967294.0); /* { dg-warning "conversion" } */
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91 us = 4294967294.0; /* { dg-warning "conversion" } */
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92 fus (-4294967294.0); /* { dg-warning "conversion" } */
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93 us = -4294967294.0; /* { dg-warning "conversion" } */
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94
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95 fsc (500.0); /* { dg-warning "conversion" } */
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96 sc = 500.0; /* { dg-warning "conversion" } */
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97 fsc (-500.0); /* { dg-warning "conversion" } */
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98 sc = -500.0; /* { dg-warning "conversion" } */
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99 fuc (500.0); /* { dg-warning "conversion" } */
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100 uc = 500.0; /* { dg-warning "conversion" } */
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101 fuc (-500.0); /* { dg-warning "conversion" } */
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102 uc = -500.0; /* { dg-warning "conversion" } */
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103
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104 fss (500.0);
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105 ss = 500.0;
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106 fss (-500.0);
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107 ss = -500.0;
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108 fus (500.0);
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109 us = 500.0;
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110 fus (-500.0); /* { dg-warning "conversion" } */
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111 us = -500.0; /* { dg-warning "conversion" } */
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112 }
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