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第一次（在我的新开发环境中）我看到 valgrind 抱怨 mktime，但我不确定这是 libc 库、valgrind 还是我的代码中的错误。我将从错误开始（如下） - 这些信息足以解释原因吗？

==3682==    at 0x38ACE9A505: __mktime_internal (in /lib64/libc-2.12.so)
==3682==    by 0x4D66F7: ???
==3682==    by 0x4D7611: ???
==3682==    by 0x4D23CD: ???
==3682==    by 0x4D175B: ???
==3682==    by 0x38ACE1ECDC: (below main) (in /lib64/libc-2.12.so)
==3682==  Uninitialised value was created by a stack allocation
==3682==    at 0x4D64BE: ???
==3682== 
==3682== Conditional jump or move depends on uninitialised value(s)
==3682==    at 0x38ACE9A505: __mktime_internal (in /lib64/libc-2.12.so)
==3682==    by 0x4D67DA: ???
==3682==    by 0x4D7611: ???
==3682==    by 0x4D23CD: ???
==3682==    by 0x4D175B: ???
==3682==    by 0x38ACE1ECDC: (below main) (in /lib64/libc-2.12.so)
==3682==  Uninitialised value was created by a stack allocation
==3682==    at 0x4D64BE: ???
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1 回答 1

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对于遇到这种情况的其他人...

该结构由 strptime 填充，它显然没有填充未使用的结构成员（dst）......但 mktime 不喜欢这样:) 所以 memset 它为零

于 2012-01-28T01:51:43.140 回答