Hello, Using the -On optimization flag, what is the greatest "n" value that can I use? In the gcc manual (4.5.1, 4.4.5, 3.4.6) the greatest level documented is -O3 (http://gcc.gnu.org/onlinedocs/gcc-4.5.1/gcc/Optimize-Options.html#Optimize-Options), but if you tray for example with -O4, -O5, -O9, etc. no warning nor error is emitted. I've asket some people and all says that -O4 and -O5 are valid and higher level optimizators than the documented -O3. What is the correct answer? Is -O3 the higher optimization level as is documented in the manual or -O4, -O5 performs additional optimizations? If -O3 is the higher why the use of -O4, -O5 not emits a warning or error? Thanks -- ***************************************** José Luis García Pallero jgpallero@xxxxxxxxx (o< / / \ V_/_ Use Debian GNU/Linux and enjoy! *****************************************
