在打开文件流后,读取内容之前,调用setbuffer()可用来设置文件流的缓冲区。参数stream为指定的文件流,参数buf指向自定的缓冲区起始地址,参数size为缓冲区大小。头文件#include<stdio.h>函数原型void setbuffer(FILE * stream,char * buf,......
2023-10-13 07:23 阅读 阅读全文在muduo库的AppendFile类的构造函数中,会使用::setbuffer(fp_,buffer_,sizeofbuffer_);将缓冲区设置为本地的buffer_,因为虽然对于行缓冲、_setbuffer...
2023-10-13 07:23 阅读 阅读全文SYNOPSIS 总览#include <stdio.h>void setbuf(FILE *stream, char *buf); void setbuffer(FILE *stream, char *buf, size_t size); void setlinebuf(FILE *stream); int setvbuf(FILE *stream, char *......
2023-10-13 07:23 阅读 阅读全文名称setbuf,setbuffer,setlinebuf,setvbuf- 流缓冲操作概要#include <stdio.h>void setbuf(FILE *stream, char *buf);void setbuffer(FILE *stream, char *buf, size_t size);void setlinebuf(FILE *stream);......
2023-10-13 07:23 阅读 阅读全文一、介绍// stdio 库函数当操作磁盘文件时,缓冲大块数据以减少系统调用,C语言库函数I/O函数fprintf,fscanf(),fgets(),fputs(),fputc(),fgetc()等都是这么做的,stdio库函数可以使编程者免于自行处理对数据的缓冲。运行在用户空间!,下一......
2023-10-10 01:11 阅读 阅读全文接口:#include void setbuf(FILE *stream, char *buf);void setbuffer(FILE *stream, char *buf, size_t size);void setlinebuf(FILE *stream)int setvbuf(FILE *stream, char *buf, int mode, size_t size);描述:系统中有三..._setbuffer...
2023-10-13 07:23 阅读 阅读全文