Thefseek() functionin the C language allows programmers to set the file pointer to a given offset inside afile, making it an essential tool forfile manipulation. Developers may perform various tasks, includingrandom access, adding data, editing existing material,andreading particular file sections, ...
The syntax for the fseek function in the C Language is:int fseek(FILE *stream, long int offset, int whence);Parameters or Argumentsstream The stream whose file position indicator is to be modified. offset The offset to use (in bytes) when determining the new file position. whence It can ...
Here, we are going to learn about the fseek() function of library header stdio.h in C language with its syntax, example.
Here is the syntax of fseek() in C language, int fseek(FILE *stream, long int offset, int whence) Here are the parameters used in fseek(), stream− This is the pointer to identify the stream. offset− This is the number of bytes from the position. ...
一、fseek 函数生成指定大小的文件 利用fseek 函数可以移动指针的原理 , 文件打开后 , 直接调用 fseek 函数 , 将指针向后移动指定偏移 , 然后在偏移后的位置写出一个字节数据 , 可以瞬间生成一个指定大小的文件 ; 如要生成 n n n 字节的文件 , 可以先将指针指向距离开始位置偏移 n n n 字节的位置 , ...
The “C” language “printf” statement makes use of the “ftell” function with the “f” file descriptor to tell us the total number of characters in a file from index 0 to the end. #include <stdio.h> intmain(){ FILE*f;
In addition to changing the file position indicator,fseekundoes the effects ofungetcand clears the end-of-file status, if applicable. If a read or write error occurs, the error indicator for the stream (ferror) is set and the file position is unaffected. ...
The C languagecodewith the bug is shown below (simplified for brevity). Your iPhone/MAC calls this function every time you visit a webpage and here’s what happened to it — 带有错误的C语言代码如下所示(为简洁起见已简化)。 每当您访问网页时,您的iPhone / MAC都会调用此功能,这是发生了什么事...
Moves the file pointer in a file opened with a low-level file function. Return Value Numeric Remarks After moving the file pointer, FSEEK( ) returns the number of bytes the file pointer is positioned from the beginning of the file. The file pointer can also be moved with FREAD( ) and ...
Name fseek function — Changes file position Synopsis int fseek(FILE* stream, long int offset, int origin) The fseek function seeks to a different position in stream. The origin … - Selection from C++ In a Nutshell [Book]