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Groups > comp.lang.c > #6786

Re: K&R2, exercise 5-4, strend(s,t)

From Ike Naar <ike@sverige.freeshell.org>
Newsgroups comp.lang.c
Subject Re: K&R2, exercise 5-4, strend(s,t)
Date 2011-06-24 06:58 +0000
Organization A noiseless patient Spider
Message-ID <slrn3vfsj08dd1.ifg.ike@sverige.freeshell.org> (permalink)
References <4e031bce$0$312$14726298@news.sunsite.dk> <itvds4$nr9$1@dont-email.me> <87oc1o875q.fsf@bazspaz.fatphil.org> <e4f82879-642f-4936-806c-f3a645897b76@m22g2000yqh.googlegroups.com> <slrn3vfsj08b2b.ab5.ike@sverige.freeshell.org>

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On 2011-06-24, Ike Naar <ike@sverige.freeshell.org> wrote:
> On 2011-06-24, Gene <gene.ressler@gmail.com> wrote:
>> // UNCOMPILED; UNTESTED
>> int strend(const char* str1, const char* str2)
>> {
>>   int len2;
>>   char *p, *str2loc;
>>
>>   if (str1 && str2) {
>>     len2 = strlen(str2);
>>     // p points to the unsearched part of str1
>>     p = str1;
>>     for (;;) {
>>       char *str2loc = strstr(p, str2);
>>       if (!str2loc)
>>         return 0;
>>       p = str2loc + len2;
>>       if (*p == '\0')
>>         return 1;
>>     }
>>   }
>>   return 0;
>> }
>
> You mentioned that the code is uncompiled and untested, and in
> fact it has a few compilation errors but they are easy to fix.

To Gene: Sorry about the phrase "a few compilation errors"; there's
only a single compilation error in the above fragment (the assigment
``p = str1'' assigns a pointer-to-const to a pointer-to-nonconst).

There was another compilation error, but that was in the code that
I added to turn your code fragment into a complete program.

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Thread

K&R2, exercise 5-4, strend(s,t) arnuld <sunrise@invalid.address> - 2011-06-23 10:56 +0000
  Re: K&R2, exercise 5-4, strend(s,t) Ian Collins <ian-news@hotmail.com> - 2011-06-23 23:03 +1200
  Re: K&R2, exercise 5-4, strend(s,t) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-06-23 13:28 +0100
  Re: K&R2, exercise 5-4, strend(s,t) Mark Bluemel <mark_bluemel@pobox.com> - 2011-06-23 14:08 +0100
    Re: K&R2, exercise 5-4, strend(s,t) Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2011-06-24 02:22 +0300
      Re: K&R2, exercise 5-4, strend(s,t) Gene <gene.ressler@gmail.com> - 2011-06-23 18:14 -0700
        Re: K&R2, exercise 5-4, strend(s,t) Ike Naar <ike@sverige.freeshell.org> - 2011-06-24 06:18 +0000
          Re: K&R2, exercise 5-4, strend(s,t) Ike Naar <ike@sverige.freeshell.org> - 2011-06-24 06:58 +0000
    Re: K&R2, exercise 5-4, strend(s,t) Tim Rentsch <txr@alumni.caltech.edu> - 2011-06-25 10:07 -0700
      Re: K&R2, exercise 5-4, strend(s,t) arnuld <sunrise@invalid.address> - 2011-06-27 08:02 +0000
        Re: K&R2, exercise 5-4, strend(s,t) Mark Bluemel <mark_bluemel@pobox.com> - 2011-06-27 10:13 +0100
        Re: K&R2, exercise 5-4, strend(s,t) Tim Rentsch <txr@alumni.caltech.edu> - 2011-06-27 11:54 -0700
      Re: K&R2, exercise 5-4, strend(s,t) Mark Bluemel <mark_bluemel@pobox.com> - 2011-06-27 09:07 +0100
        Re: K&R2, exercise 5-4, strend(s,t) Tim Rentsch <txr@alumni.caltech.edu> - 2011-06-27 11:51 -0700
          Re: K&R2, exercise 5-4, strend(s,t) Mark Bluemel <mark_bluemel@pobox.com> - 2011-06-28 08:19 +0100
            Re: K&R2, exercise 5-4, strend(s,t) Tim Rentsch <txr@alumni.caltech.edu> - 2011-06-28 16:03 -0700

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