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Re: missing prototypes
- From: "François-Xavier Coudert" <fxcoudert at gmail dot com>
- To: "Steve Kargl" <sgk at troutmask dot apl dot washington dot edu>
- Cc: "Jack Howarth" <howarth at bromo dot msbb dot uc dot edu>, gfortran <fortran at gcc dot gnu dot org>
- Date: Sat, 5 Aug 2006 18:06:22 +0200
- Subject: Re: missing prototypes
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- References: <20060805023757.E159B70006@bromo.msbb.uc.edu> <19c433eb0608050214j18dbad26n8d67149905054934@mail.gmail.com> <20060805150437.GA36506@troutmask.apl.washington.edu>
Maybe my C is too rusty. Why is a prototype needed
right before the actual declaration/implementation
of the function?
Only because of the -Wmissing-prototype that is passed when building
libgfortran:
$ cat a.c
#include <math.h>
float j0f (float x) { return (float) j0 ((double) x); }
$ gcc -c -W -Wall a.c -Wmissing-prototypes
a.c:2: warning: no previous prototype for 'j0f'
FX