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Add the likely() function for symmetry with unlikely(). The likely(X)

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function means the same thing as likelihood(X,0.9375).

FossilOrigin-Name: 38965484199153e3e5b999f5196c1d66e5296f60
This commit is contained in:
drh
2014-06-17 16:11:28 +00:00
parent e2bdf6e547
commit 03202a97f8
6 changed files with 48 additions and 14 deletions
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26
test/func3.test
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@ -149,8 +149,32 @@ do_execsql_test func3-5.35 {
# the code generator optimizes away so that it consumes no CPU cycles at
# run-time (that is, during calls to sqlite3_step()).
#
do_test func3-5.40 {
do_test func3-5.39 {
db eval {EXPLAIN SELECT unlikely(min(1.0+'2.0',4*11))}
} [db eval {EXPLAIN SELECT min(1.0+'2.0',4*11)}]
do_execsql_test func3-5.40 {
SELECT likely(9223372036854775807);
} {9223372036854775807}
do_execsql_test func3-5.41 {
SELECT likely(-9223372036854775808);
} {-9223372036854775808}
do_execsql_test func3-5.42 {
SELECT likely(14.125);
} {14.125}
do_execsql_test func3-5.43 {
SELECT likely(NULL);
} {{}}
do_execsql_test func3-5.44 {
SELECT likely('test-string');
} {test-string}
do_execsql_test func3-5.45 {
SELECT quote(likely(x'010203000405'));
} {X'010203000405'}
do_test func3-5.49 {
db eval {EXPLAIN SELECT likely(min(1.0+'2.0',4*11))}
} [db eval {EXPLAIN SELECT min(1.0+'2.0',4*11)}]
finish_test