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¡¾checkpass.c¡¿
#include <stdio.h>
#include <string.h>
 
int checkpass(void){
   int x;
   char a[9];
   x = 0;
   fprintf(stderr,"a at %p and\nx at %p\n", (void *)a, (void *)&x);
   printf("Enter a short word: ");
   scanf("%s", a);
   if (strcmp(a, "mypass") == 0)
      x = 1;
   return x;
}
[make.c]
#include <stdio.h>
int checkpass(void);
int main(void)
{ 
 int x; 
 x = checkpass();
   fprintf(stderr, "x = %d\n", x);
   if (x) 
    fprintf(stderr, "Password is correct!\n"); 
 else 
    fprintf(stderr, "Password is not correct!\n");
  return 0;
}
[makefile]
LINT = lint         ##  lint check  Code
LOPS =  -x #-u
CC = cc #xlc  ## ×¢Ò⣺´óд'C' for c++
CC_FLAGS = #-q64 #-bnoquiet
INCLUDE= #-I.   -I/usr/include -I/usr/vacpp/include
LIBPATH=#-L/usr/vacpp/lib -L/usr/lib -L/lib
PROGRAM = run
ALL : $(PROGRAM)
.SUFFIXES: .cpp .c .cc .cxx .o
.DEFAULT : all
SRCS = main.c  checkpass.c
OBJS = $(SRCS:.c=.o)
 
$(PROGRAM) : $(OBJS)
  $(CC) $(CC_FLAGS) $(INCLUDE) $(LIBPATH) $(OBJS) -o $(PROGRAM)
.c.o:
 $(CC) $(INCLUDE) $(CC_FLAGS)   -c $<
lintall: lint
lint:
 $(LINT) $(LOPS) main.c checkpass.c
 
clean:
 - rm -f  ./*.o ./*.a ./$(PROGRAM)
[end]