Hi Manjunath, Yes it compiled, thanks a lot. And I'll check if the result is correct. Still don't know why sqrt function is declared in math.h but unusable.
Maybe it's declared but not implemented. Anyway I really appreciate your help. Best regards. > > Hi, > > Can you please try sqrtf() ? > > Manjunath D > > ################################################################################################################ > *************************************************************************************************************** > > On Wed, 16 Nov 2011, ys...@lifc.univ-fcomte.fr wrote: > >> >> Hello, >> >> I'm working with telosb mote, and I need to use sqrt function in my >> program, but I can't compile it. >> >> =========================================== >> mkdir -p build/telosb >> compiling TestMulAppC to a telosb binary >> ncc -o build/telosb/main.exe -Os -O -mdisable-hwmul -Wall -Wshadow >> -Wnesc-all -target=telosb -fnesc-cfile=build/telosb/app.c -board= >> -DDEFINED_TOS_AM_GROUP=0x22 -DIDENT_APPNAME=\"TestMulAppC\" >> -DIDENT_USERNAME=\"xubuntos\" -DIDENT_HOSTNAME=\"xubuntos-tinyos\" >> -DIDENT_USERHASH=0x00f95284L -DIDENT_TIMESTAMP=0x4ec2f4a5L >> -DIDENT_UIDHASH=0xb186c6f2L TestMulAppC.nc -lm <---- LM here >> !!!!!!!!!!!! >> TestMulC.nc: In function `TestMulC$Boot$booted': >> TestMulC.nc:22: warning: unused variable `m' >> /tmp/ccIJqAuN.o: In function `EllipticCurveP$mtIsPrime': >> app.c:(.text+0x6c0): undefined reference to `sqrt' >> make: *** [exe0] Error 1 >> =========================================== >> >> I have included math.h in my program, and I've noticed that the -lm >> switch >> is turned on, and I have even found the function declaration at ligne 62 >> in file /usr/msp430/include/math.h >> >> =========================================== >> extern double sqrt _PARAMS((double)); >> =========================================== >> >> I don't understand why it cannot find sqrt function. >> >> So can anyone help me out? >> >> Best regards >> >> -- >> Yanbo SHOU >> Ph.D student Cartoon Team >> Computer Science Laboratory of Franche-Comté >> Office 420C >> 16 route de Gray >> 25 000 Besançon, France >> >> _______________________________________________ >> Tinyos-help mailing list >> Tinyos-help@millennium.berkeley.edu >> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> -- Yanbo SHOU Ph.D student Cartoon Team Computer Science Laboratory of Franche-Comté Office 420C 16 route de Gray 25 000 Besançon, France _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
