Files - Reading and Writing

Once the file has been opened various methods exist for reading and writing from it.

int getc (FILE* fp)

Return the next character from the FILE. Return EOF for end of file or an error.

int putc (int c, FILE* fp)

Write the given character to the FILE. Return the character written or EOF if there's an error.

int fscanf(FILE *fp, char *format, ...)

Identical to scanf except that it takes a file pointer as the first argument.

int fprintf(FILE* fp, char* format, ...)

Identical to printf except that it takes a file pointer as the first argument.

char* fgets(char* line, int maxlen, FILE* fp)

Read the next input line, including the newline from fp into line; at most maxlen - 1 characters will be read. Return line on success or EOF on error.

int fputs(char* line, FILE* fp)

Write the contents of line to fp. Return 0 on success and EOF on error.