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Overview
Comment:Further simplifications to sqlite3AtoF() to remove unneeded branches.
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SHA1: dd69e53cb077873171af5312c633ca185595bf31
User & Date: drh 2016-04-26 23:14:45.113
Context
2016-04-27
02:35
Remove still more unnecessary branches from sqlite3AtoF(). (check-in: 3adfe9f3e6 user: drh tags: trunk)
2016-04-26
23:14
Further simplifications to sqlite3AtoF() to remove unneeded branches. (check-in: dd69e53cb0 user: drh tags: trunk)
21:02
Remove an unnecessary line from the sqlite3AtoF() routine. (check-in: a9d007494c user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/util.c.
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  if( z>=zEnd ) goto do_atof_calc;

  /* if decimal point is present */
  if( *z=='.' ){
    z+=incr;
    /* copy digits from after decimal to significand
    ** (decrease exponent by d to shift decimal right) */
    while( z<zEnd && sqlite3Isdigit(*z) && s<((LARGEST_INT64-9)/10) ){

      s = s*10 + (*z - '0');


      z+=incr, nDigits++, d--;
    }
    /* skip non-significant digits */
    while( z<zEnd && sqlite3Isdigit(*z) ) z+=incr, nDigits++;
  }
  if( z>=zEnd ) goto do_atof_calc;

  /* if exponent is present */
  if( *z=='e' || *z=='E' ){
    z+=incr;
    eValid = 0;








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396
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  if( z>=zEnd ) goto do_atof_calc;

  /* if decimal point is present */
  if( *z=='.' ){
    z+=incr;
    /* copy digits from after decimal to significand
    ** (decrease exponent by d to shift decimal right) */
    while( z<zEnd && sqlite3Isdigit(*z) ){
      if( s<((LARGEST_INT64-9)/10) ){
        s = s*10 + (*z - '0');
        d--;
      }
      z+=incr, nDigits++;
    }


  }
  if( z>=zEnd ) goto do_atof_calc;

  /* if exponent is present */
  if( *z=='e' || *z=='E' ){
    z+=incr;
    eValid = 0;
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