错误提示invalid operands to binary
#include<stdio.h>
#include<stdlib.h>
#include<signal.h>
int main()
{
sigset_t set;
int mask;
if(sigfillset(&set)<0)
{
perror("sigfillset error");
exit(1);
}
mask=1<<(SIGUSR1-1);
printf("before clear\n");
if(set&mask)
printf("has been set\n");
else
printf("not been set\n");
printf("\n\nafter clear\n");
if(sigemptyset(&set)<0)
{
perror("sigemptyset error");
exit(1);
}
if(set & mask)
printf("has been set\n");
else
printf("not been set\n");
exit(0);
}
编译提示错误：
sigemptyset.c: In function `main':
sigemptyset.c:15: error: invalid operands to binary &
sigemptyset.c:25: error: invalid operands to binary &
请问各位这是怎么回事？谢谢
[解决办法]
毕竟sigset_t是个结构体，你并不清楚那个long数组意味着什么，比如它是作为一个bitset还只是作为long数组而已？
