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源代码在线查看： if-2.c
/* { dg-do preprocess } */ /* { dg-options -pedantic-errors } */ #if 'a' != 'a' || '\001' != 1 || '\x12' != 0x12 #error a,1,0x12 /* { dg-bogus "#error" "basic charconst recognition" } */ #endif #if 'a' != L'a' #error L'a' /* { dg-bogus "error" "wide charconst recognition 1" } */ #endif #if L'\xfeed' != 0xfeed && L'\xfeed' != (0xfeed - 0x10000) #error 0xfeed /* { dg-bogus "error" "wide charconst recognition 2" } */ #endif #if L'\x1234' != 0x1234 #error 0x1234 /* { dg-bogus "error" "wide charconst recognition 3" } */ #endif #if 'abcd' /* { dg-warning "multi-character character constant" "multi-character charconst" } */ #endif #if 'abcdefghi' /* { dg-error "character constant (is )?too long" "charconst too long" } */ #endif #if '' /* { dg-error "empty character constant" "empty charconst" } */ #endif
