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p8: fixed issue with p8 not following ANSI C standard

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H Hautakoski 2010-08-19 12:53:18 +02:00
parent 1c210b879d
commit 5e39e3554e
5 changed files with 73 additions and 25 deletions
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44
p8.c
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@ -9,31 +9,12 @@
* No comment!
*/
#include <stdio.h>
#include <malloc.h>
#include "lib/io.h"
#define N_CHARS 1000
#define BIGWALLOFTEXT \
"73167176531330624919225119674426574742355349194934\
96983520312774506326239578318016984801869478851843\
85861560789112949495459501737958331952853208805511\
12540698747158523863050715693290963295227443043557\
66896648950445244523161731856403098711121722383113\
62229893423380308135336276614282806444486645238749\
30358907296290491560440772390713810515859307960866\
70172427121883998797908792274921901699720888093776\
65727333001053367881220235421809751254540594752243\
52584907711670556013604839586446706324415722155397\
53697817977846174064955149290862569321978468622482\
83972241375657056057490261407972968652414535100474\
82166370484403199890008895243450658541227588666881\
16427171479924442928230863465674813919123162824586\
17866458359124566529476545682848912883142607690042\
24219022671055626321111109370544217506941658960408\
07198403850962455444362981230987879927244284909188\
84580156166097919133875499200524063689912560717606\
05886116467109405077541002256983155200055935729725\
71636269561882670428252483600823257530420752963450"
#define DATA "./data/8"
int product(char *ptr, int n) {
@ -48,11 +29,24 @@ int product(char *ptr, int n) {
int main() {
int i;
char str[] = BIGWALLOFTEXT;
char *str = malloc(N_CHARS);
FILE *fd = fopen(DATA, "r");
int tmp, r = 0;
if (str == NULL) {
fprintf(stderr, "memory error\n");
return 1;
}
if (fd == NULL) {
fprintf(stderr, "can't open file '%s'\n", DATA);
return 1;
}
readnum(fd, str, N_CHARS);
for(i=0; i < N_CHARS-5; i++) {
tmp = product(&str[i], 5);
if (tmp > r)