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/* { dg-do run } */
/* Test of obscure case in token pasting in the preprocessor.
I can't think of any way to make this problem provoke a syntax error.
Based on a bug report by Manfred Hollstein. */
#include <string.h>
#define SP1(x, y) SP2(x, y)
#define SP2(x, y) SP3(x##y)
#define SP3(x) #x
#define MZ -0
int
main(void)
{
char *x = SP1(0,MZ); /* { dg-warning "valid preprocessing token" "" } */
char *y = "0-0"; /* should be the expansion of SP1(0,MZ) */
if(strcmp(x, y))
return 1;
else
return 0;
}
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