Re: Shell - c Full Example

[JB via use-livecode]

You are welcome!

I have never used c#.

JB


> On Jul 6, 2017, at 9:40 AM, Sean Cole (Pi) via use-livecode 
>  wrote:
> 
> Hi
> Is C# any different in terms of calls and compiling?
> 
> Thanks JB
> 
> Sean Cole
> *Pi Digital Productions Ltd*
> 
> On 30 June 2017 at 15:35, Bob Sneidar via use-livecode <
> use-livecode@lists.runrev.com> wrote:
> 
>> Sow how would you do that? static char rev[MAX -1]?rev[i++] =
>> *str & NULL?
>>> 
 
>> 
>> Bob S
 
>>> On Jun 29, 2017, at 20:20 , Mark Wieder via use-livecode <
>> use-livecode@lists.runrev.com> wrote:
>>> 
 char* getReverse(char const str[]){
static int i=0;
 if(*str){
getReverse(str+1);
}
 return rev;
 }
>>> 
>>> Nice use of recursion, but note that you're susceptible to buffer
>> overflow if you don't limit str to MAX-1 chars. And rev should be
>> null-terminated.
>>> 
>>> --
>>> Mark Wieder
>> 
>> 
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Re: Shell - c Full Example

[Sean Cole (Pi) via use-livecode]

Hi
Is C# any different in terms of calls and compiling?

Thanks JB

Sean Cole
*Pi Digital Productions Ltd*

On 30 June 2017 at 15:35, Bob Sneidar via use-livecode <
use-livecode@lists.runrev.com> wrote:

> Sow how would you do that? static char rev[MAX -1]?rev[i++] =
> *str & NULL?
> >
> >>
>
> Bob S
> >>
> > On Jun 29, 2017, at 20:20 , Mark Wieder via use-livecode <
> use-livecode@lists.runrev.com> wrote:
> >
> >> char* getReverse(char const str[]){
> >> static int i=0;
> >>  if(*str){
> >> getReverse(str+1);
> >> }
> >>  return rev;
> >> }
> >
> > Nice use of recursion, but note that you're susceptible to buffer
> overflow if you don't limit str to MAX-1 chars. And rev should be
> null-terminated.
> >
> > --
> > Mark Wieder
>
>
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Re: Shell - c Full Example

[Bob Sneidar via use-livecode]

Sow how would you do that? static char rev[MAX -1]?rev[i++] = *str 
& NULL?
> 
>> 

Bob S
>> 
> On Jun 29, 2017, at 20:20 , Mark Wieder via use-livecode 
>  wrote:
> 
>> char* getReverse(char const str[]){
>> static int i=0;
>>  if(*str){
>> getReverse(str+1);
>> }
>>  return rev;
>> }
> 
> Nice use of recursion, but note that you're susceptible to buffer overflow if 
> you don't limit str to MAX-1 chars. And rev should be null-terminated.
> 
> -- 
> Mark Wieder


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Re: Shell - c Full Example

[JB via use-livecode]

Thanks for the code tip, Mark.

JB


> On Jun 29, 2017, at 8:20 PM, Mark Wieder via use-livecode 
>  wrote:
> 
> On 06/29/2017 07:40 PM, JB via use-livecode wrote:
> 
>> char* getReverse(char const str[]){
>> static int i=0;
>> static char rev[MAX];
>>  if(*str){
>> getReverse(str+1);
>> rev[i++] = *str;
>> }
>>  return rev;
>> }
> 
> Nice use of recursion, but note that you're susceptible to buffer overflow if 
> you don't limit str to MAX-1 chars. And rev should be null-terminated.
> 
> -- 
> Mark Wieder
> ahsoftw...@gmail.com
> 
> 
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Re: Shell - c Full Example

[Mark Wieder via use-livecode]

On 06/29/2017 07:40 PM, JB via use-livecode wrote:


char* getReverse(char const str[]){
 static int i=0;
 static char rev[MAX];
 
 if(*str){

 getReverse(str+1);
 rev[i++] = *str;
 }
 
 return rev;

}


Nice use of recursion, but note that you're susceptible to buffer 
overflow if you don't limit str to MAX-1 chars. And rev should be 
null-terminated.


--
 Mark Wieder
 ahsoftw...@gmail.com


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Shell - c Full Example

[JB via use-livecode]

The following shows you how to compile c code
from the terminal and run it in Livecode.

1.  Open a text editor and paste the following
c code;


#include
#define MAX 100
char* getReverse(char const []);

int main(int argc, const char * argv[]) {

char *rev;
char const *str = argv[1];

if (argc != 2)
{
printf("Enter 1 arguments and try again.\n");
return 1;
}

rev = getReverse(str);
printf("%s\n",rev);

return 0;
}


char* getReverse(char const str[]){
static int i=0;
static char rev[MAX];

if(*str){
getReverse(str+1);
rev[i++] = *str;
}

return rev;
}


Save the above code on the desktop as stringR.c


2.  Open the terminal and type the following;

cd ~/Desktop
gcc -o stringR stringR.c

The compiled code should be on your desktop now.

3.  Open Livecode and paste the following into a button.
Make sure you have a field as shown below.

on mouseUp
   set the defaultFolder to "~/Desktop"
   put quote & ".detrela erew sgod gniffins bmob yhw wenk snruB & stnaR oidar 
ORIK elttaeS ylno ... ...gof eht ni god eht gniklaw saw ehS" & quote into tFILE1
   put shell( "./stringR" && tFILE1) into pData
   put pData into fld id 
   beep 2
end mouseUp

enjoy,
JB


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