Kevin Grittner <kgri...@ymail.com> wrote:
>> I distilled it down to the simplest case I could find which
>> failed to produce the warning; attached. Do you agree that it is
>> a compiler bug that this generates no warning?
>> gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith
>> -Wdeclaration-after-statement -Wendif-labels
>> -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing
>> -fwrapv -fexcess-precision=standard -g -D_GNU_SOURCE -c -o
>> warning_test.o warning_test.c -MMD -MP
The actual test case I sent for gcc is what is attached here.
Sorry for attaching the wrong file before.
--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
int warning_test(int a, int b, int c);
int warning_test(int a, int b, int c)
{
int result = 0;
int i1;
int i2;
i1 = i2 = 0;
while (i1 < 2 || i2 < 2)
{
int cmpresult;
switch (a)
{
case 1:
if (b != c)
cmpresult = (b < c) ? -1 : 1;
break;
}
if (cmpresult < 0)
{
result = -1;
break;
}
i1++, i2++;
}
return result;
}
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