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while (!feof(myFile)) { int number; fscanf(myFile, "%d", &number); add_to_your_array(number); } This, although looks nice, has a problem . If you are indeed reaching the end of file, you will have read a garbage number and added to your data before testing the end of file.
4 lip 2022 · The format string consists of non-whitespace multibyte characters except %: each such character in the format string consumes exactly one identical character from the input stream, or causes the function to fail if the next character on the stream does not compare equal.
function. <cstdio> fscanf. int fscanf ( FILE * stream, const char * format, ... ); Read formatted data from stream. Reads data from the stream and stores them according to the parameter format into the locations pointed by the additional arguments.
The fscanf () function cannot be used for a file opened with type=record or type=blocked. The scanf () function reads data from the standard input stream stdin into the locations given by each entry in the argument list.
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.
For instance, if file is a pointer to a FILE that was returned by fopen and n is an int, this function can get an int using %i: fscanf ( file , "%i" , & n ); Among this function’s supported conversion specifications are:
The fscanf function returns an integer value representing the number of input items successfully matched and assigned. If the input ends before the first matching failure or if an error occurs, EOF (End Of File) is returned.
