Re: Trig functions from math.h
On 26 November 2014 at 19:06, Les Howell hlhow...@pacbell.net wrote: Gentle developers: I have some older code that used to compile, which I wish to reuse and maybe redesign. However the code is C and uses the sinf function, which seems to have disappeared from math.h. Can anyone tell me where this has gone? The man pages no longer return the sinf function, Info pages say that it should be in either math.h or complex.h, but it is not. The either math.h needs some modification (dated Sep 26 this year), and the man pages need updating, or the new function needs to be named, supported and the information on the Info pages needs to be updated. But in the interim, what is a work around? Please don't tell me I have to code a trig function. This is part of c99, so if it's not there it's a bug. Don't have a Fedora box in front of me to test on, but it might not be available if you don't supply -lm (in theory only applies to linking the libraries, but I think it can have other effects), and may need to specify a standard that includes it, possibly --std=c99 or --std=gnu99 to get the right definitions available. Defining _DEFAULT_SOURCE suggested by Kevin Kofler may have a similar effect if your build system is forcing c89 or something. -- imalone http://ibmalone.blogspot.co.uk -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
Re: Trig functions from math.h
Les Howell wrote: I have some older code that used to compile, which I wish to reuse and maybe redesign. However the code is C and uses the sinf function, which seems to have disappeared from math.h. Can anyone tell me where this has gone? The man pages no longer return the sinf function, Info pages say that it should be in either math.h or complex.h, but it is not. The either math.h needs some modification (dated Sep 26 this year), and the man pages need updating, or the new function needs to be named, supported and the information on the Info pages needs to be updated. But in the interim, what is a work around? Please don't tell me I have to code a trig function. #define _DEFAULT_SOURCE or pass -D_DEFAULT_SOURCE to gcc. Kevin Kofler -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
Trig functions from math.h
Gentle developers: I have some older code that used to compile, which I wish to reuse and maybe redesign. However the code is C and uses the sinf function, which seems to have disappeared from math.h. Can anyone tell me where this has gone? The man pages no longer return the sinf function, Info pages say that it should be in either math.h or complex.h, but it is not. The either math.h needs some modification (dated Sep 26 this year), and the man pages need updating, or the new function needs to be named, supported and the information on the Info pages needs to be updated. But in the interim, what is a work around? Please don't tell me I have to code a trig function. Regards, Les H -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
Re: Trig functions from math.h
Once upon a time, Les Howell hlhow...@pacbell.net said: I have some older code that used to compile, which I wish to reuse and maybe redesign. However the code is C and uses the sinf function, which seems to have disappeared from math.h. It works for me. What error are you getting (always helpful to include)? Are you linking with -lm (the math library)? Also, just FYI: this list is intended for developing Fedora, not really developing _on_ Fedora (so unless you are working on F21 or rawhide, you should use us...@lists.fedoraproject.org in the future). -- Chris Adams li...@cmadams.net -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
