[ale] Missing "floor"?

[leam hall]

Morning Ed!

I'm looking around (googling) to understand what you mean and I'm not
getting it. math.h is included in the program and exists in /usr/include.

Leam



On Wed, Jun 19, 2013 at 10:30 AM, Ed Cashin <ecashin at noserose.net> wrote:

> Maybe link the math library?  A quick check suggests that's it.
>
> [ecashin at marino ~]$ man floor | grep Link
>        Link with -lm.
> [ecashin at marino ~]$
>
> On Wed, Jun 19, 2013 at 10:18 AM, leam hall <leamhall at gmail.com> wrote:
>
>> Not sure why I'm getting:
>>
>> gcc -Wall -Werror -o rand rand.c
>> /tmp/ccAJ7e8S.o: In function `main':
>> rand.c:(.text+0x16): undefined reference to `floor'
>> collect2: ld returned 1 exit status
>>
>> ###
>> rand.c
>> ###
>>
>> #include <stdio.h>
>> #include <unistd.h>
>> #include <stdlib.h>
>> #include <math.h>
>>
>> int main(void) {
>>
>>     int num;
>>     float val = 2.3;
>>     num = floor(val);
>>     printf("num is %d.\n", num);
>>
>>     return 0;
>> }
>>
>> --
>> Mind on a Mission <http://leamhall.blogspot.com/>
>>
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>

-- 
Mind on a Mission <http://leamhall.blogspot.com/>
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