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eb63640c1d
Signed-off-by: Emil Velikov <emil.velikov@collabora.com> Acked-by: Matt Turner <mattst88@gmail.com> Acked-by: Jose Fonseca <jfonseca@vmware.com>
37 lines
849 B
C
37 lines
849 B
C
#define e THIS_SHOULD_NOT_BE_EXPANDED
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#define E NOR_THIS
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#define p NOT_THIS_EITHER
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#define P AND_SURELY_NOT_THIS
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#define OK CRAZY_BUT_TRUE_THIS_NEITHER
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/* This one is actually meant to be expanded */
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#define MUST_EXPAND GO
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/* The following are "preprocessing numbers" and should not trigger macro
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* expansion. */
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1e
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1OK
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/* These are also "preprocessing numbers", so no expansion */
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123e+OK
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.23E+OK
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1.3e-OK
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12.E-OK
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123p+OK
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.23P+OK
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1.3p-OK
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12.P-OK
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123..OK
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.23.OK.OK
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/* Importantly, just before the MUST_EXPAND in each of these, the preceding
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* "preprocessing number" ends and we have an actual expression. So the
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* MUST_EXPAND macro must be expanded (who would have though?) in each case. */
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123ef+MUST_EXPAND
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.23E3-MUST_EXPAND
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1.3e--MUST_EXPAND
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12.E-&MUST_EXPAND
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123p+OK+MUST_EXPAND
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.23P+OK;MUST_EXPAND
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1.3p-OK-MUST_EXPAND
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12.P-OK&MUST_EXPAND
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