From: Yukihiro Matsumoto Date: 2006-05-05T10:46:54+09:00 Subject: Re: What do you say to log2 to Math module? Hi, In message "Re: What do you say to log2 to Math module?" on Fri, 5 May 2006 09:34:44 +0900, Tanaka Akira writes: |I guess it is easy to persuade matz because log2 is defined |by C99 and POSIX. Right. And I did it last night. Although gcc gives me warning "incompatible implicit declaration of built-in function 'log2'" unless I specify -std=c99. matz.