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21 sie 2012 · To find out the end of the file with symbols you can use EOF. For example: char symbol; FILE *in = fopen("./task.in", "r"); for ( ; fscanf(in, "%c", &symbol) != EOF; ) { printf("%c", symbol); }
while(fscanf(in,"%s",name) != EOF){ fscanf(in,"%s",surname); while( !feof(in) && fscanf(in,"%d",&grade)>0 ){ n_grades++; } } EOF stands for End Of File, so the first loop will continue until the end of the file is found, i.e. until the file pointer reaches the end of the file.
4 lip 2022 · 1) reads the data from stdin. 2) reads the data from file stream stream. 3) reads the data from null-terminated character string buffer. Reaching the end of the string is equivalent to reaching the end-of-file condition for fscanf.
11 paź 2024 · int fscanf(FILE *ptr, const char *format, ...) fscanf reads from a file pointed by the FILE pointer (ptr), instead of reading from the input stream. Return Value: It returns zero or EOF, if unsuccessful.
The fscanf() function reads formatted data from a file and writes it into memory locations specified by the arguments, then moves the position indicator to the file position where it stopped reading. The fscanf() function is defined in the <stdio.h> header file.
#include <cstdio> int fscanf( FILE *stream, const char *format, ... The function fscanf() reads data from the given file stream in a manner exactly like scanf(). The return value of fscanf() is the number of variables that are actually assigned values, or EOF if no assignments could be made.
10 wrz 2023 · int fscanf(std::FILE* stream, constchar* format, ... ); (2) int sscanf(constchar* buffer, constchar* format, ... ); (3) Reads data from a variety of sources, interprets it according to format and stores the results into given locations. 1) Reads the data from stdin. 2) Reads the data from file stream stream.
