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111
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1 /* Test -Wno-builtin-macro-redefined warnings. */
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2
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3 /* { dg-do compile } */
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4 /* { dg-options "-Wno-builtin-macro-redefined -U__DATE__ -D__TIME__=X" } */
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5
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6 /* Check date, time, and datestamp built-ins warnings may be suppressed. */
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7
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8 #if defined(__DATE__)
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9 #error "__DATE__ is defined, but should not be (-U command line error)"
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10 /* { dg-bogus "__DATE__ is defined" "" { target *-*-* } .-1 } */
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11 #endif
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12
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13 #if __TIME__ != X
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14 #error "__TIME__ is not defined as expected (-D command line error)"
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15 /* { dg-bogus "__TIME__ is not defined" "" { target *-*-* } .-1 } */
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16 #endif
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17
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18 #if !defined(__TIMESTAMP__)
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19 #error "__TIMESTAMP__ is not defined (built-in macro expectation error)"
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20 /* { dg-bogus "__TIMESTAMP__ is not defined" "" { target *-*-* } .-1 } */
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21 #endif
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22
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23
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24 #undef __TIME__ /* Undefine while defined. */
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25 #undef __TIME__ /* Undefine while already undefined. */
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26
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27 #define __TIME__ "X" /* Define while undefined. */
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28 #define __TIME__ "X" /* Re-define while defined. */ /* { dg-line time_prev } */
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29
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131
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30 #define __TIME__ "Y" /* { dg-warning "-:\"__TIME__\" redefined" } */
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31 /* { dg-message "-:previous definition" "" { target *-*-* } time_prev } */
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111
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32
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33 #undef __TIME__ /* Undefine while defined. */
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34
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35
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36 #undef __DATE__ /* Undefine while already undefined. */
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37
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38 #define __DATE__ "X" /* Define while undefined. */
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39 #define __DATE__ "X" /* Re-define while defined. */ /* { dg-line date_prev } */
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40
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131
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41 #define __DATE__ "Y" /* { dg-warning "-:\"__DATE__\" redefined" } */
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42 /* { dg-message "-:previous definition" "" { target *-*-* } date_prev } */
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111
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43
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44 #undef __DATE__ /* Undefine while defined. */
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45
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46
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47 #define __TIMESTAMP__ "X" /* Define while already defined. */
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48 #define __TIMESTAMP__ "X" /* Re-define while defined. */ /* { dg-line timestamp_prev } */
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49
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131
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50 #define __TIMESTAMP__ "Y" /* { dg-warning "-:\"__TIMESTAMP__\" redefined" } */
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51 /* { dg-message "-:previous definition" "" { target *-*-* } timestamp_prev } */
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111
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52
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53 #undef __TIMESTAMP__ /* Undefine while defined. */
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54
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55
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56 /* Check other built-ins with warnings that may be suppressed. */
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57
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58 #if !defined(__FILE__) || !defined(__BASE_FILE__)
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59 #error "Expected built-in is not defined (built-in macro expectation error)"
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60 /* { dg-bogus "Expected built-in is not defined" "" { target *-*-* } .-1 } */
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61 #endif
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62
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63 #define __FILE__ "X" /* Define while already defined. */
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64 #define __BASE_FILE__ "X" /* Define while already defined. */
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65
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66
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67 /* Check selected built-ins not affected by warning suppression. */
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68
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69 #if !defined(__LINE__) || !defined(__INCLUDE_LEVEL__) || !defined(__COUNTER__)
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70 #error "Expected built-in is not defined (built-in macro expectation error)"
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71 /* { dg-bogus "Expected built-in is not defined" "" { target *-*-* } .-1 } */
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72 #endif
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73
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131
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74 #define __LINE__ 0 /* { dg-warning "-:\"__LINE__\" redef" } */
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75 #define __INCLUDE_LEVEL__ 0 /* { dg-warning "-:\"__INCLUDE_LEVEL__\" redef" } */
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76 #define __COUNTER__ 0 /* { dg-warning "-:\"__COUNTER__\" redef" } */
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111
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77
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78
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79 int unused; /* Silence `ISO C forbids an empty translation unit' warning. */
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