This is due to stream buffering of stdout. Unless you do fflush(stdout) or you print a newline “\n” the output is may be buffered. In this case, it’s segfaulting before the buffer is flushed and printed. You can try this instead: or:
See any reference manual, such as the man page: f,F The double argument is rounded and converted to decimal notation in the style [-]ddd.ddd, where the number of digits after the decimal-point character is equal to the precision specification. If the precision is missing, it is taken as 6; if the precision is explicitly zero, no … Read more
Yes, You can use gcc to compile your asm code. Use -c for compilation like this: This will give object code file named file.o. To invoke linker perform following after above command:
I need to input coordinates into an array until EOF is encountered, but something is wrong in my code. I used ctrl+Z, ctrl+D
The function fgets read until a newline (and also stores it). fscanf with the %s specifier reads until any blank space and doesn’t store it… As a side note, you’re not specifying the size of the buffer in scanf and it’s unsafe. Try:
A NULL pointer points to memory that doesn’t exist. This may be address 0x00000000 or any other implementation-defined value (as long as it can never be a real address). Dereferencing it means trying to access whatever is pointed to by the pointer. The * operator is the dereferencing operator: This is exactly the same thing as a NullReferenceException in C#, except that pointers … Read more
conio.h is a C header file used with old MS-DOS compilers to create text user interfaces. Compilers that target other operating systems, such as Linux-based, 32-bit Windows and OS/2, provide equivalent functionality through other header files and libraries. The #include <curses.h> will give you almost all of the functionality provided by conio.h. “ncurses” needs to be installed in the … Read more
You have to put ; behind the struct declaration:
Usually nowadays I see It used to be common to see It all gets the point across.
No, you cannot define a function within a struct in C. You can have a function pointer in a struct though but having a function pointer is very different from a member function in C++, namely there is no implicit this pointer to the containing struct instance. Contrived example (online demo http://ideone.com/kyHlQ):