logo
down
shadow

compilation error: cast from pointer to integer of different size


compilation error: cast from pointer to integer of different size

By : Mr.T
Date : October 19 2020, 06:10 PM
Hope this helps Your platform has pointers that are larger than 32 bits. Furthermore, the type of the offsetof() expression should be size_t. You should either:
code :
#define OFFSETOF(_s, _m) ((size_t)(&((_s *)0)->_m))
#define OFFSETOF(_s, _m) ((size_t)((char*)&((_s *)0)->_m - (char*)0))


Share : facebook icon twitter icon
Cast from uint8_t pointer to uint32_t integer compilation error

Cast from uint8_t pointer to uint32_t integer compilation error


By : kingliu
Date : March 29 2020, 07:55 AM
will be helpful for those in need
presumably I could resolve it by changing uint32_t cast to uintptr_t. Is it correct?
cast from pointer to integer of different size and assignment makes integer from pointer without a cast

cast from pointer to integer of different size and assignment makes integer from pointer without a cast


By : user2520317
Date : March 29 2020, 07:55 AM
To fix the issue you can do There's a couple of issues in your code.
First you're casting the result from malloc() to a char and not a char*. This is what is causing the error your question refers to.
code :
void KnightsFlip( FILE * fin, FILE * fout )
{
    int num;
    fscanf( fin, "%d", &num );
    fprintf( fout, "KnightsFlip:\n" );
    char *string;
    string = ( char* ) malloc( ( num + 1 ) * sizeof( char ) );
    if ( string == NULL )
    {
        printf( "Not Memory found" );
    }
    else
    {
        string[num] = '\0';
        KnightsFlipRecursion( string, 0, num, fout );
        fprintf( fout, "\n" );
        free( string );
    }
}
Why g++ giver: "error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]"

Why g++ giver: "error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]"


By : user3037549
Date : March 29 2020, 07:55 AM
Hope that helps I'm doing an UDP connection, between a microcontroller and a computer. The framework I'm using is c++ based and has a function to send an UDP packet with the following prototype: , I would assume this is correct:
code :
udp.send(reinterpret_cast<char*>(&dummy),2);
udp.send((char*)&dummy,2);
warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] c programming

warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] c programming


By : Ag47
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , sizeof (int) may be different than sizeof(void*), use std::uintptr_t to hold pointer in an integral.
cast from pointer to integer of different size. compile error

cast from pointer to integer of different size. compile error


By : Benjamin CHARBONNIER
Date : March 29 2020, 07:55 AM
may help you . argv is a char**, a pointer to a pointer. Think of it as an array of strings, not a string.
Indexing with [i] removes one level of indirection, so argv[i] is a pointer to a character, a char*.
Related Posts Related Posts :
  • Problem with C function of type char pointer, can someone explain?
  • Macros in C.... please give the solution
  • Unix Piping using Fork and Dup
  • Any difference between these two while loops?
  • Hashtable implementation for C
  • Problems with Linked List in C
  • Stack Allocation in C
  • Random function stuck on one number
  • printf following zeros to a certain degree
  • Measuring CPU clocks consumed by a process
  • How is a CRC32 checksum calculated?
  • Tips on redefining a register bitfield in C
  • Converting a program from c to bash script
  • Static library not included in resulting LLVM executable
  • What is the meaning of "wild pointer" in C?
  • Reading DWORD from binary file
  • Efficient way to find divisibility
  • Whats the fastest, portable way to hash pointers we know are pointer aligned to a fixed size int?
  • Why does my summation program behaves weird?
  • How to determine values saved on the stack?
  • Thread scheduling C
  • C - converting to 2s complement
  • wireless networks c program
  • From where does the uboot get the information about flash, RTC, RAM in uboot/kernel development
  • printf behaviour in C
  • Measure size and way-order of L1 and L2 caches
  • Efficient copy of entire directory
  • Efficient way to create/unpack large bitfields in C?
  • getnameinfo prototype asks for sockaddr not sockaddr_in?
  • Linked List Sorting with Strings In C
  • Typecasting a floating value or using the math.h floor* functions?
  • Problem implementing sorting algorithm in C with an array of structs
  • How to copy a ram_base file to disk efficiently
  • How to fix casting a pointer to an integer?
  • How to round floating point numbers to the nearest integer in C?
  • PIC C - Sending 200 values over USB, but it only sends 25 or so of them
  • How do you return a string from a function correctly in Dynamic C?
  • Monotonic clock on IRIX
  • setsockopt (sys/socket.h)
  • How to make C program wait (on Linux)?
  • i find a problem using atoi() method in ansi c?
  • Why is this array being initialized in an odd way?
  • How to execute commands in chroot?
  • Microsecond (or one ms) time resolution on an embedded device (Linux Kernel)
  • Question about variable definitions in functions
  • SMTP on C: STARTTLS via OpenSSL
  • fetch value of ipaddress
  • Binary expressions in C
  • Why do char * and char ** have the same value?
  • problem in allocating kernel memory by malloc() from user space?
  • dangling pointer, reason for value change after free()?
  • How to compile C program with multiple files in Xcode
  • Can you make an incrementing compiler constant?
  • Reading data from text file in C
  • SQLite's test code to production code ratio
  • Displaying an inverted pyramid of asterisks
  • sd spi mode in C language
  • printf("%2d") in C programming
  • Add a certain number of bytes to a void pointer in C
  • How should I protect against hard link attacks?
  • shadow
    Privacy Policy - Terms - Contact Us © 35dp-dentalpractice.co.uk