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Old 10-07-2005, 01:51 AM   #1
dludenar
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Registered: Sep 2005
Location: Japan
Distribution: CentOS 5.2 / Fedora Core 8
Posts: 41

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Problems with program


Hello people

I'm starting programming in C, I am studying from this book "A book on C" of Al Kelley & Ira Pohl, but I have one problems with the following program:

#include <stdio.h>
#define MAXWORD 100

main ()

{
char *find_next(), word[MAXWORD];
int char_cnt = 0, word_cnt = 0, word_lenght = 0;

while (find_next(word) != NULL)
{
capitalize(word);
++word_cnt;
word_lenght = strlen(word);
char_cnt += word_lenght;
printf ("\n%12d %s", word_lenght, word);
}
printf ("\n\n%12d characters in %d words\n\n",
char_cnt, word_cnt);
}

char *find_next(word)
char word[];
{
int c, i;

while ((c = getchar()) == ' ' || c == '\n' || '\t')
; /* skip white space */
if (c != EOF)
{
i = 0;
while (c != ' ' && c != '\n' && c != '\t' && c != EOF)
{
word[i++] = c;
c = getchar ();
}
word[i] = '\0';
return (word);
}
else
return (NULL);
}

capitalize(p)
char *p;
{
for ( ; *p != '\0'; ++p)
if ('a' <= *p && *p <= 'z')
*p += 'A' - 'a';
}

When you input the following text "she sells sea shells by the seashore", at the moment of excecute the program, the result must be:

3 SHE
5 SELLS
3 SEA
6 SHELLS
2 BY
3 THE
8 SEASHORE

When I compilled there's no problem, no errors no warnings, but when I excecute and introduce the text it doesn't work, I hope you could help me, I am using Fedora Core 3.

Thanks
 
Old 10-07-2005, 01:55 AM   #2
dludenar
Member
 
Registered: Sep 2005
Location: Japan
Distribution: CentOS 5.2 / Fedora Core 8
Posts: 41

Original Poster
Rep: Reputation: 16
Error when excecute program

Hello people

I'm beggining programming in C, well now I have problems with the following program:

#include <stdio.h>

main()

{
int c, i, letter[26];
FILE *fp, *fopen();

fp = fopen("chapter1", "r");
for (i = 0; i < 26; ++i) /* initialize array to cero */
letter[i] = 0;
while ((c = getc(fp)) != EOF)
if ('A' <= c && c <= 'Z')
++letter [c - 'A'];
for (i = 0; i < 26; ++i)
{
if (i % 6 == 0)
printf ("\n");
printf ("%5c:%5d", 'A' + 1, letter[i]);
}
printf ("\n\n");
}

When I compilled it no erros, no warnings, but when I excecuted, says: "Segmentation fault"

Can anyone help me to solve this problem??? I hope so.

Regards

dludenar
 
Old 10-07-2005, 03:18 AM   #3
acid_kewpie
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Distribution: Gentoo, RHEL, Fedora, Centos
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Old 10-07-2005, 06:06 AM   #4
XavierP
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