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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5564 | serge | 1 | #define e THIS_SHOULD_NOT_BE_EXPANDED |
| 2 | #define E NOR_THIS |
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| 3 | #define p NOT_THIS_EITHER |
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| 4 | #define P AND_SURELY_NOT_THIS |
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| 5 | #define OK CRAZY_BUT_TRUE_THIS_NEITHER |
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| 6 | |||
| 7 | /* This one is actually meant to be expanded */ |
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| 8 | #define MUST_EXPAND GO |
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| 9 | |||
| 10 | /* The following are "preprocessing numbers" and should not trigger macro |
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| 11 | * expansion. */ |
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| 12 | 1e |
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| 13 | 1OK |
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| 14 | |||
| 15 | /* These are also "preprocessing numbers", so no expansion */ |
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| 16 | 123e+OK |
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| 17 | .23E+OK |
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| 18 | 1.3e-OK |
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| 19 | 12.E-OK |
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| 20 | 123p+OK |
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| 21 | .23P+OK |
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| 22 | 1.3p-OK |
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| 23 | 12.P-OK |
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| 24 | 123..OK |
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| 25 | .23.OK.OK |
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| 26 | |||
| 27 | /* Importantly, just before the MUST_EXPAND in each of these, the preceding |
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| 28 | * "preprocessing number" ends and we have an actual expression. So the |
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| 29 | * MUST_EXPAND macro must be expanded (who would have though?) in each case. */ |
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| 30 | 123ef+MUST_EXPAND |
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| 31 | .23E3-MUST_EXPAND |
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| 32 | 1.3e--MUST_EXPAND |
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| 33 | 12.E-&MUST_EXPAND |
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| 34 | 123p+OK+MUST_EXPAND |
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| 35 | .23P+OK;MUST_EXPAND |
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| 36 | 1.3p-OK-MUST_EXPAND |
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| 37 | 12.P-OK&MUST_EXPAND |