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/* Spurious uninitialized variable warnings, case 2.
Taken from cpphash.c (macroexpand) */
/* { dg-do compile } */
/* { dg-options "-Wuninitialized" } */
struct definition
{
int nargs;
int rest_args;
};
struct cpp_reader;
enum cpp_token
{
CPP_EOF, CPP_POP, CPP_COMMA, CPP_RPAREN
};
extern enum cpp_token macarg (struct cpp_reader *, int);
void
macroexpand (struct cpp_reader *pfile, struct definition *defn)
{
int nargs = defn->nargs;
if (nargs >= 0)
{
enum cpp_token token; /* { dg-bogus "token" "uninitialized variable warning" } */
int i, rest_args;
i = 0;
rest_args = 0;
do
{
if (rest_args)
continue;
if (i < nargs || (nargs == 0 && i == 0))
{
/* if we are working on last arg which absorbs rest of args... */
if (i == nargs - 1 && defn->rest_args)
rest_args = 1;
token = macarg (pfile, rest_args);
}
else
token = macarg (pfile, 0);
if (token == CPP_EOF || token == CPP_POP)
return;
i++;
}
while (token == CPP_COMMA);
}
}
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