xref: /sqlite-3.40.0/test/atof1.test (revision 89f15088)
1*89f15088Sdrh# 2012 June 18
2*89f15088Sdrh#
3*89f15088Sdrh# The author disclaims copyright to this source code.  In place of
4*89f15088Sdrh# a legal notice, here is a blessing:
5*89f15088Sdrh#
6*89f15088Sdrh#    May you do good and not evil.
7*89f15088Sdrh#    May you find forgiveness for yourself and forgive others.
8*89f15088Sdrh#    May you share freely, never taking more than you give.
9*89f15088Sdrh#
10*89f15088Sdrh#***********************************************************************
11*89f15088Sdrh#
12*89f15088Sdrh# Tests of the sqlite3AtoF() function.
13*89f15088Sdrh#
14*89f15088Sdrh
15*89f15088Sdrhset testdir [file dirname $argv0]
16*89f15088Sdrhsource $testdir/tester.tcl
17*89f15088Sdrh
18*89f15088Sdrhexpr srand(1)
19*89f15088Sdrhfor {set i 1} {$i<10000} {incr i} {
20*89f15088Sdrh  do_test 1.$i {
21*89f15088Sdrh    set pow [expr {int((rand()-0.5)*100)}]
22*89f15088Sdrh    set x [expr {pow((rand()-0.5)*2*rand(),$pow)}]
23*89f15088Sdrh    set xf [format %.45e $x]
24*89f15088Sdrh    set y [db eval "SELECT $xf=\$x"]
25*89f15088Sdrh    if {!$y} {
26*89f15088Sdrh      puts -nonewline \173[db eval "SELECT real2hex($xf), real2hex(\$x)"]\175
27*89f15088Sdrh      db eval "SELECT $xf+0.0 AS a, \$x AS b" {
28*89f15088Sdrh        puts [format "\n%.60e\n%.60e\n%.60e" $x $a $b]
29*89f15088Sdrh      }
30*89f15088Sdrh    }
31*89f15088Sdrh    set y
32*89f15088Sdrh  } {1}
33*89f15088Sdrh}
34*89f15088Sdrh
35*89f15088Sdrh
36*89f15088Sdrhfinish_test
37