I’m trying to ask the user to type in a string so I will print the length of the string. My code is built succeeded. However, when I entered a word and pressed ‘enter’, the program keeps running. I had to enter a second word, then the length of the first string displays. I’m confused … Read more
Bus errors are rare nowadays on x86 and occur when your processor cannot even attempt the memory access requested, typically: using a processor instruction with an address that does not satisfy its alignment requirements. Segmentation faults occur when accessing memory which does not belong to your process. They are very common and are typically the … Read more
Lol I don’t know how to explain this so i’ll give it my best shot I recommend using a debugger! it may help you so much you won’t even know
Provided the char array is null terminated,
C doesn’t have a foreach, but macros are frequently used to emulate that: And can be used like Iteration over an array is also possible: And can be used like Edit: In case you are also interested in C++ solutions, C++ has a native for-each syntax called “range based for”
This bellow code will generate Aborted (core dumped) at last line. code: output is: Here I’m interested to know in which cases these core dumped will occur? Can we find out at which line this is occurred without using debugger? what information it is showing(about shared libraries)?
You are correctly reading the value at memory address 0x8048f0b, but the line call 8048f0b <strings_not_equal> indicates that this address is the start of a function (called strings_not_equal()). You wouldn’t expect that to be ASCII – you’d expect it to be more machine code. If you’re looking for the function arguments to strings_not_equal(), those are being pushed onto the stack. … Read more
How should I use array of function pointers in C? How can I initialize them?
The math library must be linked in when building the executable. How to do this varies by environment, but in Linux/Unix, just add -lm to the command: The math library is named libm.so, and the -l command option assumes a lib prefix and .a or .so suffix.
The math library must be linked in when building the executable. How to do this varies by environment, but in Linux/Unix, just add -lm to the command: The math library is named libm.so, and the -l command option assumes a lib prefix and .a or .so suffix.