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Provide example for calculating Integer.MIN_VALUE with SpEL's power operator

This commit is contained in:
Sam Brannen 2024-02-02 14:43:56 +01:00
parent 1e432ff95d
commit 7025b7aac2
2 changed files with 7 additions and 0 deletions
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4
framework-docs/modules/ROOT/pages/core/expressions/language-ref/operators.adoc
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@ -415,6 +415,8 @@ Java::
int maxInt = parser.parseExpression("(2^31) - 1").getValue(int.class); // Integer.MAX_VALUE
int minInt = parser.parseExpression("-2^31").getValue(int.class); // Integer.MIN_VALUE
// -- Operator precedence --
int minusTwentyOne = parser.parseExpression("1+2-3*8").getValue(int.class); // -21
@ -479,6 +481,8 @@ Kotlin::
val maxInt = parser.parseExpression("(2^31) - 1").getValue(Int::class.java) // Integer.MAX_VALUE
val minInt = parser.parseExpression("-2^31").getValue(Int::class.java) // Integer.MIN_VALUE
// -- Operator precedence --
val minusTwentyOne = parser.parseExpression("1+2-3*8").getValue(Int::class.java) // -21

3
spring-expression/src/test/java/org/springframework/expression/spel/SpelDocumentationTests.java
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@ -429,6 +429,9 @@ class SpelDocumentationTests extends AbstractExpressionTests {
int maxInt = parser.parseExpression("(2^31) - 1").getValue(int.class); // Integer.MAX_VALUE
assertThat(maxInt).isEqualTo(Integer.MAX_VALUE);
int minInt = parser.parseExpression("-2^31").getValue(int.class); // Integer.MIN_VALUE
assertThat(minInt).isEqualTo(Integer.MIN_VALUE);
// -- Operator precedence --
int minusTwentyOne = parser.parseExpression("1+2-3*8").getValue(int.class); // -21