Re: [PATCH] fast-import.c: Silence build warning
2009/9/1 Junio C Hamano <gitster@pobox.com>:
Show 32 quoted lines
> Michael Wookey <michaelwookey@gmail.com> writes:
>
>> gcc 4.3.3 (Ubuntu 9.04) warns that the return value of strtoul() was not
>> checked by issuing the following notice:
>>
>> warning: ignoring return value of ‘strtoul’, declared with attribute
>> warn_unused_result
>>
>> Provide a dummy variable to keep the compiler happy.
>>
>> Signed-off-by: Michael Wookey <michaelwookey@gmail.com>
>> ---
>> fast-import.c | 5 +++--
>> 1 files changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/fast-import.c b/fast-import.c
>> index 7ef9865..1386e75 100644
>> --- a/fast-import.c
>> +++ b/fast-import.c
>> @@ -1744,10 +1744,11 @@ static int validate_raw_date(const char *src,
>> char *result, int maxlen)
>> {
>> const char *orig_src = src;
>> char *endp;
>> + unsigned long int unused;
>>
>> errno = 0;
>>
>> - strtoul(src, &endp, 10);
>> + unused = strtoul(src, &endp, 10);
>
> Isn't this typically done by casting the expression to (void)?I originally tried that - the compiler still complains.
> Otherwise a clever compiler has every right to complain "the variable
> unused is assigned but never used."
I get no other warnings, so does that make gcc less than clever? ;-)
Michael Wookey <michaelwookey@gmail.com>