61 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			61 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
# 2015-11-06
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#
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# The author disclaims copyright to this source code.  In place of
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# a legal notice, here is a blessing:
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#
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#    May you do good and not evil.
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#    May you find forgiveness for yourself and forgive others.
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#    May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# 
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# Tests of the iee754 extension
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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load_static_extension db ieee754
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foreach {id float rep} {
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   1       1.0                            1,0
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   2       2.0                            2,0
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   3       0.5                            1,-1
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   4       1.5                            3,-1
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   5       0.0                            0,-1075
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   6       4.9406564584124654e-324        4503599627370497,-1075
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   7       2.2250738585072009e-308        9007199254740991,-1075
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   8       2.2250738585072014e-308        1,-1022
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} {
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  do_test ieee754-100-$id-1 {
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    db eval "SELECT ieee754($float);"
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  } "ieee754($rep)"
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  do_test ieee754-100-$id-2 {
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    db eval "SELECT ieee754($rep)==$float;"
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  } {1}
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  if {$float!=0.0} {
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    do_test ieee754-100-$id-3 {
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      db eval "SELECT ieee754(-$float);"
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    } "ieee754(-$rep)"
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    do_test ieee754-100-$id-4 {
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      db eval "SELECT ieee754(-$rep)==-$float;"
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    } {1}
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  }
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}
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do_test ieee754-110 {
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  string tolower [
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    db eval {SELECT ieee754(1,1024), ieee754(4503599627370495,972);}
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  ]
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} {inf 1.79769313486232e+308}
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do_test ieee754-111 {
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  string tolower [
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    db eval {SELECT ieee754(-1,1024), ieee754(-4503599627370495,972);}
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  ]
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} {-inf -1.79769313486232e+308}
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do_execsql_test ieee754-112 {
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  SELECT ieee754(4503599627370495,973) is null;
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} {1}
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finish_test
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