Date: Wed, 4 Jul 2018 14:19:47 +0930 From: Shane Ambler <FreeBSD@ShaneWare.Biz> To: Antonio Olivares <olivares14031@gmail.com>, FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Clang++ stdlib/cstdlib.h workaround Message-ID: <f907f846-f607-40a1-c925-c04d1569ac47@ShaneWare.Biz> In-Reply-To: <CAJ5UdcP-Hpa%2BYqAkwkrv4ec_mV=CaTzDo%2BkCAADd-JKb25OdeQ@mail.gmail.com> References: <CAJ5UdcP-Hpa%2BYqAkwkrv4ec_mV=CaTzDo%2BkCAADd-JKb25OdeQ@mail.gmail.com>
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On 04/07/2018 04:08, Antonio Olivares wrote: > Dear kind folks, > > I have a cpp file that used stdlib.h and it compiled and ran successfully. > I am trying it out with clang and it returns errors that it cannot find > stdlib.h, I remove the stdlib.h include statement and it still complains. You can add -I<path> as an argument that tells clang where to search for header files. -L<path> does the same for libraries. Even when you remove it another included file may still want it. clang++ -I/usr/include -L/usr/lib -o myapp myfile.cpp > I made a copy of the c++ file and it compiles and runs correctly, but I > removed some stuff " --- " and only output the numbers. How do I deal with > stdlib.h requirements? > > The program finds numbers that are triangular and square. It fails for > numbers that are bigger than 2147483647. Does that number have any significance to you? It is the largest number that can be held by a 32bit signed integer. You can use an unsigned int to get twice that or you can use a long long to get a 64bit integer. Also related is that the math library functions have several variations that take different size arguments. -- FreeBSD - the place to B...Software Developing Shane Ambler
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