linux下的gcc编译器
源代码在线查看： redef1.c
/* Test for redefining traditional macros with insignificant (i.e. whitespace) differences. */ /* { dg-do preprocess } */ #define foo bar #define /* x */ foo /* x */ bar /* x */ #define quux(thud) a one and a thud and a two #define /**/ quux( thud ) /**/ a one and a /**/ thud /**/ and /**/ a two #define quux(thud) a one and a thud and a two /* bah */ #define f(x, y)x "x y z" y #define f(x, y) x "x y z" y #define baz() whiz bang #define baz() whiz bang #define g foo #undef g #define g /* { dg-bogus "redefined" "foo redefined" { target *-*-* } 8 } */ /* { dg-bogus "redefined" "quux redefined" { target *-*-* } 11 } */ /* { dg-bogus "redefined" "quux redefined" { target *-*-* } 12 } */ /* { dg-bogus "redefined" "f redefined" { target *-*-* } 15 } */ /* { dg-bogus "redefined" "baz redefined" { target *-*-* } 18 } */ /* { dg-bogus "redefined" "g redefined" { target *-*-* } 22 } */ /* { dg-bogus "previous def" "foo prev def" { target *-*-* } 7 } */ /* { dg-bogus "previous def" "quux prev def" { target *-*-* } 10 } */ /* { dg-bogus "previous def" "quux prev def" { target *-*-* } 11 } */ /* { dg-bogus "previous def" "f prev def" { target *-*-* } 14 } */ /* { dg-bogus "previous def" "baz prev def" { target *-*-* } 17 } */ /* { dg-bogus "previous def" "g prev def" { target *-*-* } 20 } */
