derek.holloway
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73 lines
2.0 KiB
Plaintext
73 lines
2.0 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 $testdir/tester.tcl
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load_static_extension db ieee754
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foreach {id float rep} {
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1 1.0 1,0
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2 2.0 2,0
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3 0.5 1,-1
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4 1.5 3,-1
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5 0.0 0,-1075
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6 4.9406564584124654e-324 1,-1074
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7 2.2250738585072009e-308 4503599627370495,-1074
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8 2.2250738585072014e-308 1,-1022
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} {
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do_test ieee754-100-$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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do_execsql_test ieee754-200 {
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SELECT ieee754(0.0), hex(ieee754_to_blob(ieee754(0,-1075)));
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} {ieee754(0,-1075) 0000000000000000}
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# Special case. -0.0 is rendered as ieee754(-1,-3071).
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#
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do_execsql_test ieee754-201 {
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SELECT ieee754(-0.0), hex(ieee754_to_blob(ieee754(-1,-3071)));
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} {ieee754(-1,-3071) 8000000000000000}
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finish_test
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