usr/src/libF77/s_paus.c

#include <stdio.h>
#define PAUSESIG 15


s_paus(s, n)
char *s;
long int n;
{
int i;
int waitpause();

fprintf(stderr, "PAUSE ");
if(n > 0)
        for(i = 0; i<n ; ++i)
                putc(*s++, stderr);
fprintf(stderr, " statement executed\n");
if( isatty(fileno(stdin)) )
        {
        fprintf(stderr, "To resume execution, type go.  Any other input will terminate job.\n");
        if( getchar()!='g' || getchar()!='o' || getchar()!='\n' )
                {
                fprintf(stderr, "STOP\n");
                f_exit();
                exit(0);
                }
        }
else
        {
        fprintf(stderr, "To resume execution, execute a   kill -%d %d   command\n",
                PAUSESIG, getpid() );
        signal(PAUSESIG, waitpause);
        pause();
        }
fprintf(stderr, "Execution resumes after PAUSE.\n");
}


static waitpause()
{
return;
}