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RDCHK(3)
NIX System V (21 1987)


rdchk - poepe ae ax e

	int rdchk (fdes)
	int fdes;


rdchk poepe, ye poecc opoa, ec o oaec a a c oepo fdes. rdchk opaae 1, ec ec ae e ocy oe aa (EOF). Oo, rdchk coyec ao oece:

     if(rdchk(fildes)>0)
          read(fildes,buffer,nbytes);

.
read(3)


rdchk opaae -1, ec oapyea oa EBADF, 0, ec poecc ye opoa oce oa read, 1, ec ee ooo. Oa EBADF oae, ec o rdchk pee ceaopoy ay yaa a e cyecye.

AEA
popaa, coya y y, oa oooac c ao -lx.
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