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/* PR 17880 */
/* { dg-do compile } */
/* { dg-options "-Wsequence-point" } */
int
foo (int x)
{
unsigned int a;
int b;
b = (a += 5) > a; /* { dg-warning "undefined" "sequence point warning" } */
b = (a += 5) + a == 10; /* { dg-warning "undefined" "sequence point warning" } */
b = (a -= 5) > a; /* { dg-warning "undefined" "sequence point warning" } */
b = (a -= 5) + a == 10; /* { dg-warning "undefined" "sequence point warning" } */
b = a-- > a; /* { dg-warning "undefined" "sequence point warning" } */
b = a-- + a == 10; /* { dg-warning "undefined" "sequence point warning" } */
b = ++a > a; /* { dg-warning "undefined" "sequence point warning" } */
b = ++a + a == 10; /* { dg-warning "undefined" "sequence point warning" } */
if ((a += 5) > a) return -1; /* { dg-warning "undefined" "sequence point warning" } */
if ((a += 5) + a == 10) return -1; /* { dg-warning "undefined" "sequence point warning" } */
if ((a -= 5) > a) return -1; /* { dg-warning "undefined" "sequence point warning" } */
if ((a -= 5) + a == 10) return -1; /* { dg-warning "undefined" "sequence point warning" } */
if (a-- > a) return -1; /* { dg-warning "undefined" "sequence point warning" } */
if (a-- + a == 10) return -1; /* { dg-warning "undefined" "sequence point warning" } */
if (++a > a) return -1; /* { dg-warning "undefined" "sequence point warning" } */
if (++a + a == 10) return -1; /* { dg-warning "undefined" "sequence point warning" } */
do {} while ((a += 5) > a); /* { dg-warning "undefined" "sequence point warning" } */
while ((a += 5) > a); /* { dg-warning "undefined" "sequence point warning" } */
for ((a += 5) > a;;); /* { dg-warning "undefined" "sequence point warning" } */
for (b = (a += 5) > a;;); /* { dg-warning "undefined" "sequence point warning" } */
for (; (a += 5) > a;); /* { dg-warning "undefined" "sequence point warning" } */
for (;; b = (a += 5) > a); /* { dg-warning "undefined" "sequence point warning" } */
for (;; a++ + a++); /* { dg-warning "undefined" "sequence point warning" } */
if (a) a++ - a--; /* { dg-warning "undefined" "sequence point warning" } */
((a +=5) > a) ? a : b; /* { dg-warning "undefined" "sequence point warning" } */
return (a++ - a--); /* { dg-warning "undefined" "sequence point warning" } */
}
void bar (int i)
{
int a = i++ - i++; /* { dg-warning "undefined" "sequence point warning" } */
}
void baz (int i)
{
switch (i++ + i++) /* { dg-warning "undefined" "sequence point warning" } */
{
case 1:
i++ - i++; /* { dg-warning "undefined" "sequence point warning" } */
case 2:
break;
}
}
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