On Wed, Nov 16, 2005 at 09:00:33AM -0600, STYMA, ROBERT E (ROBERT) wrote: > > So, ignoring this, I use the following in a random number > > generator program and > > get the following while compilation.... > > > > gcc -c -O3 -std=c99 -Wall -pedantic random.c > > random.c: In function 'setseed': > > random.c:35: warning: implicit declaration of function 'srandom' > > random.c: In function 'runi': > > random.c:48: warning: implicit declaration of function 'random' > > > > But I have included stdlib.h so what is the problem? > > > For whatever reason, the declare for srandom in > /usr/include/stdlib.h is surrounded by the #ifdef > > #if defined __USE_SVID || defined __USE_XOPEN_EXTENDED || defined __USE_BSD Run info libc 'Feature Test Macros' and read all it says on this matter. Jakub
