Description of problem: fileno() not declared in stdio.h contrary to man 3 fileno Version-Release number of selected component (if applicable): glibc-headers-2.3.3-46 gcc35-3.5.0-0.9 gcc-3.4.1-9 How reproducible: 100% Steps to Reproduce: 1. ellson@ontap:~> cat bug.c #include <stdio.h> int main() { return (fileno(stdin)); } ellson@ontap:~> gcc35 -std=c99 bug.c bug.c: In function `main': bug.c:3: warning: implicit declaration of function 'fileno' ellson@ontap:~> 2. 3. Actual results: warning about implicit declaration Expected results: no warning Additional info:
fileno is POSIX, but not ISO C function. *** This bug has been marked as a duplicate of 130815 ***
Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.