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From: "Samuel Lauber" <sam124 AT operamail DOT com>
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Subject: Re: Strange problems with printf()
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Date: Sat, 08 Jan 2005 16:36:18 GMT
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>> int printf(char *, ...);
>> int main(void)
>> {
>>      printf("%f\n", 1);
>> }
>>
>> Compile it, and it would say `Unnormal'. Is this a bug?
> A bug, yes, but in your program, not in the compiler or the library.
> If you compile with the -Wall switch, which prints warnings for
> dubious code, the compiler says:
>     cfp.c: In function `main':
>     cfp.c:4: warning: double format, different type arg (arg 2)
>     cfp.c:5: warning: control reaches end of non-void function
> The first warning is directly related to what you see: you should use
>      printf("%f\n", 1.0);
> i.e. make the argument be a float or a double, not an int.
The first floating point number I tried was 5.86, and I tried
it with smaller and smaller FP numbers, with /without
decimal points. Change it to 5.86 or even 1.1.