Here, we are going to learn about the fseek() function of library header stdio.h in C language with its syntax, example.
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, ...
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ExampleThe following user-defined function uses FSEEK( ) to return the size of a file. If you don't pass parameters to the user-defined function, it returns –2. If the file cannot be found, the user-defined function returns –1.
C Library - fseek() function - The C library fseek(FILE *stream, long int offset, int whence) function sets the file position of the stream to the given offset.This function is a part of the C Standard Library and is used for file handling.
Run Example » Definition and Usage The fseek() function seeks in an open file. This function moves the file pointer from its current position to a new position, forward or backward, specified by the number of bytes. Tip:You can find the current position by using ftell()!
rewind() The function rewind() is used to set the position of file to the beginning of given stream. It does not return any value. Here is the syntax of rewind() in C language, void rewind(FILE *stream); Here is an example of rewind() in C language, ...
C/C++ fseek()用法及代码示例 fseek() 用于将与给定文件关联的文件指针移动到特定位置。 用法: intfseek(FILE *pointer, long int offset, int position)pointer:pointer to a FILE object that identifies the stream.offset:number of bytes to offset from positionposition:position from where offset is added...
C stdiofseek()Function ❮ C stdio Library Example Read the character at position 4 from the start of the file: FILE *fptr; fptr = fopen("filename.txt","r"); fseek(fptr,4,SEEK_SET); charc = fgetc(fptr); printf("%c", c); ...
如果执行成功，stream将指向以fromwhere（偏移起始位置：文件头0(SEEK_SET)，当前位置1(SEEK_CUR)，文件...