Thread: switch case error. Can anyone help?

switch case error. Can anyone help?

Code:

void sig_handler(int signo){
	switch(signo){
		case SIGALRM:
			flag = getpid();
			switch(flag){
				case parent_PID:
					p_realt_secs++;
					break;
				case child1_PID:
					c1_realt_secs++;
					break;
				case child2_PID:
					c2_realt_secs++;
					break;
				default:
					break;
			}
			break;
		case SIGVTALRM:
			flag = getpid();
				switch(flag){
				case parent_PID:
					p_virtt_secs++;
					break;
				case child1_PID:
					c1_virtt_secs++;
					break;
				case child2_PID:
					c2_virtt_secs++;
				break;
				default:
					break;
				}
			break;
		case SIGPROF:
			flag = getpid();
				switch(flag){
				case parent_PID:
					p_proft_secs++;
					break;
				case child1_PID:
					c1_proft_secs++;
					break;
				case child2_PID:
					c2_proft_secs++;
					break;
				default:
					break;
				}
			break;
		default:
			break;
	}
}

output:

Code:

kernel_system.c: In function ‘sig_handler’:
kernel_system.c:26: error: case label does not reduce to an integer constant
kernel_system.c:29: error: case label does not reduce to an integer constant
kernel_system.c:32: error: case label does not reduce to an integer constant
kernel_system.c:42: error: case label does not reduce to an integer constant
kernel_system.c:45: error: case label does not reduce to an integer constant
kernel_system.c:48: error: case label does not reduce to an integer constant
kernel_system.c:58: error: case label does not reduce to an integer constant
kernel_system.c:61: error: case label does not reduce to an integer constant
kernel_system.c:64: error: case label does not reduce to an integer constant

Right! thanks...i just change it into if else{ }

i got it thanks...