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Changes to src/math.c.

   386    386     return r;
   387    387     
   388    388   not_a_valid_number:
   389    389     r.e = SQLITE4_MX_EXP+1;
   390    390     r.m = 0;
   391    391     return r;  
   392    392   }
          393  +
          394  +/*
          395  +** Convert an sqlite4_int64 to a number and return that number.
          396  +*/
          397  +sqlite4_num sqlite4_num_from_int64(sqlite4_int64 n){
          398  +  sqlite4_num r;
          399  +  r.approx = 0;
          400  +  r.e = 0;
          401  +  r.sign = n < 0;
          402  +  if( n>=0 ){
          403  +    r.m = n;
          404  +  }else if( n!=SMALLEST_INT64 ){
          405  +    r.m = -n;
          406  +  }else{
          407  +    r.m = 1+(u64)LARGEST_INT64;
          408  +  }
          409  +  return r;
          410  +}
   393    411   
   394    412   /*
   395    413   ** Convert an integer into text in the buffer supplied. The
   396    414   ** text is zero-terminated and right-justified in the buffer.
   397    415   ** A pointer to the first character of text is returned.
   398    416   **
   399    417   ** The buffer needs to be at least 21 bytes in length.