Re: OT: gcc warning: implicit declaration of function

[Bryce Schober <bryceman at dpzone dot com>]

Dan Kegel wrote:

> Try adding -E and see what the preprocessed source looks like.

# 1 "test.c"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "test.c"
# 1 "/usr/local/lib/gcc-lib/arm-elf/3.3/include/stdlib.h" 1 3 4




# 1 "/usr/local/lib/gcc-lib/arm-elf/3.3/include/stddef.h" 1 3 4
# 213 "/usr/local/lib/gcc-lib/arm-elf/3.3/include/stddef.h" 3 4
typedef long unsigned int size_t;
# 6 "/usr/local/lib/gcc-lib/arm-elf/3.3/include/stdlib.h" 2 3 4
# 2 "test.c" 2

int main(int argc, char *argv[])
{
        int a = abs(-3);

        return a;
}


> What version of gcc and newlib are you using?

gcc-3.3, newlib-1.11.0

--
Bryce Schober
Design Engineer
Dynon Avionics, Inc.
www.dynonavionics.com

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