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Annotation of coherent/a/usr/man/MULTI/strtod, revision 1.1

1.1     ! root        1: 
        !             2: 
        !             3: strtod()                 General Function                strtod()
        !             4: 
        !             5: 
        !             6: 
        !             7: 
        !             8: Convert string to floating-point number
        !             9: 
        !            10: #iinncclluuddee <ssttddlliibb.hh>
        !            11: ddoouubbllee ssttrrttoodd(_s_t_r_i_n_g, _t_a_i_l_p_t_r)
        !            12: cchhaarr *_s_t_r_i_n_g; cchhaarr **_t_a_i_l_p_t_r;
        !            13: 
        !            14: ssttrrttoodd converts the  number given in _s_t_r_i_n_g to a double-precision
        !            15: floating-point  number  and  returns its  value.   It  is a  more
        !            16: general  version  of  the function  aattooff.  ssttrrttoodd  also stores  a
        !            17: pointer  to  the first  character  following  the number  through
        !            18: _t_a_i_l_p_t_r, provided _t_a_i_l_p_t_r is not NNUULLLL.
        !            19: 
        !            20: ssttrrttoodd parses  the input  _s_t_r_i_n_g into three  portions: beginning,
        !            21: subject sequence, and tail.
        !            22: 
        !            23: The  _b_e_g_i_n_n_i_n_g consists  of zero  or more  white-space characters
        !            24: that begin the string.
        !            25: 
        !            26: The  _s_u_b_j_e_c_t _s_e_q_u_e_n_c_e  is the  portion of  the input  _s_t_r_i_n_g that
        !            27: ssttrrttoodd converts into  a floating-point number.  It consists of an
        !            28: optional sign  character, a  nonempty sequence of  decimal digits
        !            29: optionally including  a decimal-point character,  and an optional
        !            30: exponent.  If present, the exponent consists of either `e' or `E'
        !            31: followed by  an optional sign and a  nonempty sequence of decimal
        !            32: digits.   ssttrrttoodd reads  characters until  it encounters  either a
        !            33: second decimal-point  character or exponent marker,  or any other
        !            34: non-numeral.
        !            35: 
        !            36: The _t_a_i_l  continues from the  end of the subject  sequence to the
        !            37: null character that ends the string.
        !            38: 
        !            39: ssttrrttoodd ignores the  beginning portion of the string.  It converts
        !            40: the subject  sequence to a double-precision  number.  Finally, it
        !            41: sets  the pointer  pointed to  by _t_a_i_l_p_t_r to  the address  of the
        !            42: first character of the string's tail.
        !            43: 
        !            44: ssttrrttoodd returns  the ddoouubbllee  generated from the  subject sequence.
        !            45: If no  subject sequence could be recognized,  it returns zero and
        !            46: stores the initial value of _s_t_r_i_n_g through _t_a_i_l_p_t_r. If the number
        !            47: represented by the subject sequence  is too large or too small to
        !            48: fit into a ddoouubbllee, then  ssttrrttoodd sets the global constant eerrrrnnoo to
        !            49: EERRAANNGGEE and returns HHUUGGEE_VVAALL or zero, respectively.
        !            50: 
        !            51: ***** See Also *****
        !            52: 
        !            53: aattooff,  ddoouubbllee,  eerrrrnnoo,  ggeenneerraall  ffuunnccttiioonnss,  lliimmiittss.hh,  ssttddlliibb.hh,
        !            54: ssttrrttooll, ssttrrttoouull
        !            55: 
        !            56: ***** Notes *****
        !            57: 
        !            58: ssttrrttoodd ignores  initial white space  in the string  pointed to by
        !            59: _s_t_r_i_n_g;  white  space  is  defined  as  being all  characters  so
        !            60: recognized by the function iissssppaaccee.
        !            61: 
        !            62: 
        !            63: 
        !            64: COHERENT Lexicon                                           Page 1
        !            65: 
        !            66: 

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