c语言fclose是什么意思
时间: 2023-10-11 07:07:29 浏览: 38
fclose是一个C语言库函数,用于关闭一个已打开的文件。fclose函数将刷新文件缓冲区,关闭该文件并释放与该文件相关的所有资源。该函数的原型为:
int fclose(FILE *stream);
其中stream是指向要关闭的文件的指针。函数返回0表示成功关闭文件,返回EOF表示关闭文件失败。
相关问题
C语言fclose段错误
在C语言中,fclose函数用于关闭一个打开的文件。段错误(Segmentation Fault)通常是由于访问了未分配的内存或已经释放的内存而导致的。对于fclose函数来说,如果传递给它的文件指针是一个NULL指针或已经被关闭的文件指针,那么就会导致段错误。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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fclose(fp)是什么意思
fclose(fp)是一个函数调用,用于关闭一个文件流。它的作用是将缓冲区内剩余的数据输出到内核缓冲区,并释放与文件指针相关的缓冲区。fclose函数的原型为int fclose(FILE *fp),它接受一个文件指针作为参数。如果文件流成功关闭,fclose函数返回0,否则返回EOF(-1)。关闭文件后,可以使用if(fclose(fp))来判断是否成功关闭文件。如果关闭失败,fclose函数返回非零值,并输出出错原因。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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