To Invoke an Application-Supplied Algorithm The C runtime library function qsort sorts an array of objects, but you must supply the function that compares objects.

调用应用程序提供的算法：C 运行时库函数 qsort 排序对象数组，但你必须提供比较函数。

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This is because they reside within the C runtime library (libc.so), which was not (in this case) compiled with -pg and, hence, no profiling is gathered for any functions within this library.

这是因为这些函数都是在 C 运行时库（libc.so）中的，（在本例中）它们都没有使用 -pg 进行编译，因此就没有对这个库中的函数收集剖析信息。

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An application has made an attempt to load the C runtime library incorrectly.

这些英语的汉语意思为：应用程序试图加载C运行库时出现错误。

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