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atof(3) - Unix First Edition Manual Page
11/3/71ATOF (III)

NAME atof -- ascii to floating
SYNOPSIS jsr r5,atof; subr
DESCRIPTION atof will convert an ascii stream to a floating number returnedin fr0. The subroutine subr is called on r5 for each character

of the ascii stream. subr should return the character in r0.The first character not used in the conversion is left in r0. The floating point simulation should be active in eitherfloating or double mode, but in single precision integer mode.

FILES kept in /etc/liba.a
SEE_ALSO fptrap
BUGS The subroutine subr should not disturb any registers.