The purpose of this code is to pass a virtual address in decimal and output the page number and offset. After I compile my code using the gcc compiler on Linux I get this error: indirection requires pointer operand (‘int’ invalid) virtualAddress = *atoi(argv[1]);
You see the two empty -D entries in the g++ command line? They’re causing the problem. You must have values in the -D items e.g. -DWIN32 if you’re insistent on using something like -D$(SYSTEM) -D$(ENVIRONMENT) then you can use something like: in the makefile which gives them default values. Your output looks to be missing the all important output: just to clarify, what actually … Read more
Because %d will print the numeric character code of the char: prints 97 (on an ASCII system), while prints a.
You can use an asterisk (*) to pass the width specifier/precision to printf(), rather than hard coding it into the format string, i.e.
In C Pi is defined in math.h: #define M_PI 3.14159265358979323846
What is the difference between exit(0) and exit(1) in C language? exit(0) indicates successful program termination & it is fully portable, Whileexit(1) (usually) indicates unsucessful termination. However, it’s usage is non-portable. Note that the C standard defines EXIT_SUCCESS and EXIT_FAILURE to return termination status from a C program. 0 and EXIT_SUCCESS are the values specified by the standard to indicate successful termination, however, only EXIT_FAILURE is the standard value for … Read more
.a files are static libraries typically generated by the archive tool. You usually include the header files associated with that static library and then link to the library when you are compiling.
You likely forgot to #include <stdlib.h>
The purpose of this code is to pass a virtual address in decimal and output the page number and offset. After I compile my code using the gcc compiler on Linux I get this error: indirection requires pointer operand (‘int’ invalid) virtualAddress = *atoi(argv[1]);
I get that compilation error because of this line which intended to increase the pointer by 0x200 (to point to the next segment) I’v seen this but I didn’t use any illegal symbol! P.S. The initialization of the pointer: