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1 | #include <stdio.h> | |
2 | #include <stdlib.h> | |
3 | - | #include <string.h> |
3 | + | #include <fcntl.h> |
4 | #include <sys/mman.h> | |
5 | ||
6 | #define MAX_FILE_SIZE 65535 | |
7 | - | FILE *fp; |
7 | + | |
8 | - | char *line = NULL; |
8 | + | |
9 | - | char n[100][100]; |
9 | + | |
10 | int fd = open("~/input.txt",O_RDONLY,0); | |
11 | void *bytes; | |
12 | - | fp = fopen("INPUT.txt", "r"); |
12 | + | void *byteptr; |
13 | int i = 0; | |
14 | - | if (fp == NULL) |
14 | + | |
15 | if (fp == -1) | |
16 | { | |
17 | printf("File not found!\n"); | |
18 | exit(EXIT_FAILURE); | |
19 | } | |
20 | - | while (((line = fgets(n[i], 100, fp)) != NULL) && (i < 100)) |
20 | + | |
21 | bytes = mmap(NULL,MAX_FILE_SIZE,PROT_READ,MAP_PRIVATE,fd,0); | |
22 | - | printf("Line length: %i\n", strlen(n[i])); |
22 | + | |
23 | - | printf("Line: %s", n[i++]); |
23 | + | while ((char)*byteptr != EOF) |
24 | { | |
25 | - | |
25 | + | char *line = malloc(256*sizeof(char)); |
26 | - | fclose(fp); |
26 | + | char *lineptr = line; |
27 | - | printf("Total lines: %i", i); |
27 | + | int line_size = 0; |
28 | while (*lineptr++ = (char) *byteptr++ != '\n' && (char) *byteptr != EOF) | |
29 | line_size++; | |
30 | *lineptr = '\0'; | |
31 | printf("Line size: %s\nLine: %s\n",line_size,line); | |
32 | i++; | |
33 | } | |
34 | ||
35 | munmap(bytes, MAX_FILE_SIZE); | |
36 | close(fd); | |
37 | printf("Total lines: %i\n", i); | |
38 | } |