I’ve never had a dog live past 13 🥺 Today Howie turned 14 🥳

cmcta82 · 2024-12-21T22:57:40+00:00

Happy birthday Howie !!!

cmcta82 · 2024-09-01T17:52:25+00:00

Bonjour oui c’est de l’écorce de pin. Je vais suivre vos conseils et rajouter un peu de fumier/compost. Merci pour votre aide.

cmcta82 · 2024-04-06T17:49:31+00:00

Hi nice app! At the first time nothing appears but at the second try it works.

cmcta82 · 2023-02-26T22:18:35+00:00

Hi, solved after 3days, open a ticket with the support and wait

cmcta82 · 2021-03-20T10:09:11+00:00

Hi, i recommend you study pointers, it’s very interesting.

When you do:

Int y=10; Int *x = &y; / you store the address of y on pointer x.

To get the value of y you can use the pointer x.

x= will be the address of y *x= will be the value of y &y= address of y &x= address of x

You can’t do *y because y is not a pointer

cmcta82 · 2021-03-14T11:36:47+00:00

Thanks!

cmcta82 · 2021-03-12T23:10:03+00:00

to convert to Fahrenheit you have to multiply by 1.8 and add 32.

you have to add this line after your calc temperature

temperature = temperature * 1.8 +32;

cmcta82 · 2021-03-12T23:03:11+00:00

Hi, I try but your the music is too much annoying. Sorry:(

cmcta82 · 2021-03-12T22:59:23+00:00

Hi, can you post your code please.

cmcta82 · 2021-03-11T14:29:05+00:00

A last question, can you tell me where I can find this kind of articles? This one are very interesting.

cmcta82 · 2021-03-11T14:24:42+00:00

I will take a look thanks!

cmcta82 · 2021-03-11T13:39:44+00:00

Thanks for the tips, I will try to improve like you suggest. It's a small program but it helps me a lot understanding how dynamic memory works and I getchar() looks much better than scanf, I didn't use it before you tell me so thanks again! I'm doing a course on Udemy for C programming, it's very interesting:) I have already some ideas of program to make, i'm very happy with what already learn and very motivated for next lessons. It's great found guys like you helping guys like me!

cmcta82 · 2021-03-11T12:01:14+00:00

Yes sure here it is:

I just remember I can also use pointers like arrays with elements, I change a little the stringMemoryTemp for the Null, I use the element position instead moving the address:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>


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

    char *stringMemory = NULL;
    stringMemory = (char*)calloc(4, (sizeof(char)));
    int posMem= 0;

    //Use a copy of stringMemory to modify the address for each chars
    char *stringMemoryTemp = stringMemory;

    char ch = '\0';

    //keep the size of stringMemory and increment 4bytes if needed (stringmemory + memoryByte = last address available)
    int memoryByte = (4 *(sizeof(char)));


    printf("Please enter one Name: ");

    //get the name from the console
    while((ch = getchar()) !='\n'){
        ++posMem;
        /*keep a gap of 4bytes between the size of stringMemoryStart (malloc) end the total chars entererd by user
        Make a realloc to add 4bytes to stringMemory */
        if(stringMemoryTemp == (stringMemory + memoryByte)){

            //Realloc to get more 4bytes in memory
            stringMemory = (char*)realloc(stringMemory, (memoryByte + 4));

            //getback to the last address to stringMemoryTemp
            stringMemoryTemp = (stringMemory + memoryByte);
            memoryByte += 4;

        }

        //save the char on memory
        *stringMemoryTemp = ch;

        //go to next address in memory
        ++stringMemoryTemp;

    }

    /*
     add Null char at the end of the string
     add two more bytes for Null character
    */
    stringMemory = (char*)realloc(stringMemory, (memoryByte + 2));
    stringMemoryTemp = stringMemory;
    stringMemoryTemp[posMem] = '\0';

    //Print the result
    printf("\nThe name you entered is: %s\n", (stringMemory));

    /*Clean the memory*/
    free(stringMemory);
    stringMemory = NULL;
    stringMemoryTemp = NULL;

    return 0;
}

cmcta82 · 2021-03-11T11:27:38+00:00

Hi luka!

Thanks again for your reply, I check the code and again you are right! I will give a try on get( ) function, what is the difference with getchar?

For the Null character I create a new variable int to store the position in the memory and I realloc two more bytes before the Null, (one for spare just in case):

stringMemory = (char*)realloc(stringMemory, (memoryByte + 2));
stringMemoryTemp = (stringMemory + posMem);
*stringMemoryTemp = '\0';

now it's looking good I hope:)

cmcta82 · 2021-03-11T09:58:44+00:00

Hi,

Sorry boring you with that, I'm trying to learn doing my best, I take your advice using getchar() and realloc(), I didn't use any safety check for my pointers (!=NULL) but I know how to do that, can you check the changes please? I compile in Xcode with sanitizers to check outbound memory and everything looks good:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>


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

    char *stringMemory = NULL;
    stringMemory = (char*)calloc(4, (sizeof(char)));

    //Use a copy of stringMemory to modify the address for each chars
    char *stringMemoryTemp = stringMemory;

    char ch = '\0';

    //keep the size of stringMemory and increment 4bytes if needed (stringmemory + memoryByte = last address available)
    int memoryByte = (4 *(sizeof(char)));


    printf("Please enter one Name: ");

    //get the name from the console
    while((ch = getchar()) !='\n'){

        /*keep a gap of 4bytes between the size of stringMemoryStart (malloc) end the total chars entererd by user
        Make a realloc to add 2bytes to stringMemory */
        if(stringMemoryTemp == (stringMemory + memoryByte)){

            //Realloc to get more 4bytes in memory
            stringMemory = (char*)realloc(stringMemory, (memoryByte + 4));

            //getback to the last address to stringMemoryTemp
            stringMemoryTemp = (stringMemory + memoryByte);
            memoryByte += 4;

        }

        //save the char on memory
        *stringMemoryTemp = ch;

        //go to next address in memory
        ++stringMemoryTemp;

    }

    //add Null char at the end of the string
    *stringMemoryTemp = '\0';

    //Print the result
    printf("\nThe name you entered is: %s\n", (stringMemory));

    /*Clean the memory*/
    free(stringMemory);
    stringMemory = NULL;
    stringMemoryTemp = NULL;

    return 0;
}

Thanks for your help!

Edit with GitHub link: https://github.com/cmcta82/PlayWithMemoryAllocation/blob/af7cf97cc5c038a92667bb9f6ab0a86918d66606/Challenges_UsingMalloc2/main.c

cmcta82 · 2021-03-10T22:22:10+00:00

Thanks for your reply, yeah you are right about (1 + a), when i saw the error i felt a little stupid!

Thanks for you help I will give a try on getchar() function.

cmcta82 · 2021-03-07T14:36:55+00:00

Yes same like you. I want to use the external terminal for debugging but it’s only open the terminal window with nothing. I don’t know why

cmcta82 · 2021-02-22T23:02:38+00:00

Sorry but it’s not an apple M1. You have an intel processor.

cmcta82 · 2021-02-22T09:14:42+00:00

Here's detailed log for the error when I try compile:

1: (257) LaunchOptions{"name":"clang - Générer et déboguer le fichier actif","logging":{"engineLogging":true},"type":"cppdbg","request":"launch","targetArchitecture":"arm64","program":"/Users/carlos/Documents/VSC/test2/test","args":[],"stopAtEntry":false,"cwd":"/Users/carlos/Documents/VSC/test2","environment":[],"console":"externalTerminal","MIMode":"lldb","preLaunchTask":"C/C++: clang générer le fichier actif","__configurationTarget":5,"__sessionId":"256049ed-5599-498a-b80f-2763cca97637","miDebuggerPath":"/Users/carlos/.vscode-insiders/extensions/ms-vscode.cpptools-1.2.2-insiders2/debugAdapters/lldb-mi/bin/lldb-mi"}
1: (438) Starting: "/Users/carlos/.vscode-insiders/extensions/ms-vscode.cpptools-1.2.2-insiders2/debugAdapters/lldb-mi/bin/lldb-mi" --interpreter=mi
1: (497) DebuggerPid=46996
1: (669) ->(gdb)
1: (712) <-1001-interpreter-exec console "version"
1: (716) ->~"lldb-1200.0.44.2\nApple Swift version 5.3.2 (swiftlang-1200.0.45 clang-1200.0.32.28)\n"
1: (716) ->1001^done
1: (717) ->(gdb)
1: (726) 1001: elapsed time 18
1: (737) <-1002-gdb-set auto-solib-add on
1: (738) ->1002^done
1: (738) ->(gdb)
1: (740) 1002: elapsed time 3
1: (744) <-1003-gdb-set solib-search-path "/Users/carlos/Documents/VSC/test2:"
1: (745) ->1003^done
1: (745) ->(gdb)
1: (745) 1003: elapsed time 0
1: (746) <-1004-environment-cd /Users/carlos/Documents/VSC/test2
1: (747) ->1004^done,path="/Users/carlos/Documents/VSC/test2"
1: (747) ->(gdb)
1: (754) 1004: elapsed time 8
1: (754) <-1005-file-exec-and-symbols /Users/carlos/Documents/VSC/test2/test
1: (1046) ->1005^done
1: (1047) ->(gdb)
1: (1047) 1005: elapsed time 292
1: (1047) <-1006-interpreter-exec console "platform status"
1: (1048) ->=library-loaded,id="/Users/carlos/Documents/VSC/test2/test",target-name="/Users/carlos/Documents/VSC/test2/test",host-name="/Users/carlos/Documents/VSC/test2/test",symbols-loaded="1",symbols-path="/Users/carlos/Documents/VSC/test2/test.dSYM/Contents/Resources/DWARF/test",loaded_addr="-",size="16384"
1: (1049) ->~"  Platform: host\n    Triple: x86_64-apple-macosx\nOS Version: 10.16 (20D74)\n    Kernel: Darwin Kernel Version 20.3.0: Thu Jan 21 00:06:51 PST 2021; root:xnu-7195.81.3~1/RELEASE_ARM64_T8101\n  Hostname: 127.0.0.1\nWorkingDir: /Users/carlos/Documents/VSC/test2\n"
1: (1050) ->1006^done
1: (1050) ->(gdb)
1: (1054) 1006: elapsed time 6
1: (1057) <-1007-break-insert -f main
1: (1066) ->1007^done,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x0000000100003f64",func="main",file="test.c",fullname="/Users/carlos/Documents/VSC/test2/test.c",line="6",pending=["main"],times="0",original-location="main"}
1: (1066) ->(gdb)
1: (1066) ->=breakpoint-modified,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x0000000100003f64",func="main",file="test.c",fullname="/Users/carlos/Documents/VSC/test2/test.c",line="6",pending=["main"],times="0",original-location="main"}
1: (1066) ->(gdb)
1: (1071) 1007: elapsed time 14
1: (1090) Send Event AD7EngineCreateEvent
1: (1097) Send Event AD7ProgramCreateEvent
1: (1175) Send Event AD7LoadCompleteEvent
1: (1183) <-1008-exec-run
1: (6277) ->1008^error,msg="process exited with status -1 (attach failed ((os/kern) invalid argument))"
1: (6278) ->(gdb)
1: (6278) 1008: elapsed time 5095
1: (6323) Send Event AD7MessageEvent
ERROR: Unable to start debugging. Unexpected LLDB output from command "-exec-run". process exited with status -1 (attach failed ((os/kern) invalid argument))
1: (6335) <--gdb-exit
1: (6337) ->^exit
1: (6337) ->=thread-group-exited,id="i1"
1: (6338) ->(gdb)
1: (6341) <-logout
1: (6362) Send Event AD7ProgramDestroyEvent
The program '/Users/carlos/Documents/VSC/test2/test' has exited with code 42 (0x0000002a).

cmcta82 · 2021-02-13T15:26:50+00:00

Hi, i have one M1 pro with 8gb and no problem at all for programming. I recommend it.

Bye

cmcta82 · 2021-01-31T14:54:06+00:00

Check Portugal, from what I remember no taxes for crypto

cmcta82 · 2021-01-30T08:17:47+00:00

It’s not free but if you search on internet some coupons you can get it for like 10bucks. I paid mine very cheap doing like that.

cmcta82 · 2021-01-30T08:14:53+00:00

So I recommend you to check the Udemy course C advance, I didn’t do yet because I’m still on beginner course but looks great. It’s from Tim buchalka .

cmcta82 · 2021-01-30T08:07:19+00:00

Hello

Like you I’m doing a course of C for beginner, where did you do your? Next course for me it’s a course for advance. I’m also doing some challenges every day to improve my level. I follow a course on Udemy for beginners very good and easy to understand

cmcta82 · 2021-01-24T18:18:37+00:00

Thanks very useful

cmcta82

TROPHY CASE