2nd-batch-23-对end()迭代器解引用#75353
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luotao1 merged 1 commit intoPaddlePaddle:developfrom Sep 19, 2025
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Sep 19, 2025
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PR Category
Execute Infrastructure
PR Types
Bug fixes
Description
第二批-编号23(共1处)
records_.end()指向容器末尾之后的位置，不能被解引用。表达式records_.end()--返回end()的副本（即指向末尾之后），然后对该副本进行递减操作，但由于是后缀自减，表达式值仍是递减前的end()。因此*(records_.end()--)实际上是对end()迭代器解引用，这是未定义行为，可能导致崩溃。