1304 questions
Is it right to use exit or return in main?The main() also has a return type, so I think it's right to use return, but I've seen some codes use exit() together. Which one should I use?
I wrote a c code to run a simple shell, gave the -static option to gcc, and compiled it.The following error occurs:ld: library not found for -lcrt0.oclang: error: linker command failed with exit code ...
I want to install 32-bit odbc with 64-bit odbc binary, but it keeps building with 64-bit../configure --prefix=$HOME/unixODBC --sysconfdir=$HOME/unixODBC/etc --build=ppc32-pc-linux-gnu --host=ppc64-pc-...
I understand that to receive HttpServletRequest from the controller of spring mvc, you can add the parameter of the function as shown below. @RequestMapping(value = /, method = RequestMethod.GET) pub...
for(i=0 ; i<100; i++) for(j=0; j<1000; j++) printf(a);And for(i=0 ; i<1000; i++) for(j=0; j<100; j++) printf(a);Both loops 100,000 timesI heard one of the two spins fasterPlease explain ...
Do you often use c++ in iOS like using ndk in Android?
pyuic5-o example2.ui example.pyI ran it in the form, but the error follows: The part that I can't get a sense of is clearly 'ls -l', and when I look up, the file exists, but when I actually execute th...
int t, i;t = 0;for (i = 0; i < 10; i++) {t++;}printf(%d %d\n, t,i);int a, i, j;for (i = 0; i < 10; i++)for (j = 0; j < 5; j++)a = i +j;printf(%d, a);What's the difference?I'd appreciate it if...
You want to use a function whose circular form is char * inet_ntoa (structure in_add in); in function int ipaddr = inet_addr(127.0.0.1); And I want to convert the ip Internet address back to a dot-mar...
Hello.I'd like to make certain pixels transparent on iPhone.On Android, it became transparent if the alpha value was zero.On iPhone, R, G, B, and A must be zero to make the pixel transparent.I don't u...
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