This call, should it succeed, yields the address of the first copy of the function found in a library after the one in which the call occurs.
在一个函数中进行调用之后，如果成功的话，这个调用处理库中找到的该函数的第一个副本。
Since the MASS vector functions are much faster (by a factor of up to about 30) than a repeated call to a standard library function, the resulting performance improvement can be substantial.
因为MASS向量函数要比对一个标准库函数的重复访问快很多(倍数接近30倍)，所以最后得到的性能改善效果将会是惊人的。
In terms of the way it is called, there is no difference between a system call and a library function.
就调用方式而言，系统调用与库函数之间没有区别。
When we start talking to the library about something, we call a function called newsession that returns a void pointer (not an unusual way to organize things).
当我们开始与库交流时，我们调用一个名为 newsession 的函数，它会返回一个空指针（这是组织事情的惯用方法）。
An example of a library function that does have an associated system call is the fopen function declared in stdio.h.
有相关系统调用的库函数的一个示例是stdio . h中声明的fopen函数。
An example of a library function that does not have an associated system call is the strlen function declared in string.h.
没有相关系统调用的库函数的一个示例是string . h中声明的strlen函数。
On the first call into any of these functions, the pseudo client library populates a table of function Pointers that then point to the "real" (libc) implementations of these functions.
在第一次调用这些函数中的某个函数时，pseudo客户机库会填充一个包含函数指针的表，这些函数指针指向函数“真正的”(libc)实现。
For now we must be aware that any application can call a standard library function to look up the IP address (or addresses) corresponding to a given hostname.
如今我们需要意识到，任何程序均可调用标准库函数，查找主机名对应的IP地址。
For now we must be aware that any application can call a standard library function to look up the IP address (or addresses) corresponding to a given hostname.
如今我们需要意识到，任何程序均可调用标准库函数，查找主机名对应的IP地址。
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