Experimental pay the second week (MyoD)

Content Experiments

1 review c file processing
2 write myod.c achieved under Linux od -tx -tc XXX XXX function with MyoD
3 main and separate, making the static and dynamic libraries other
4 write Makefile
5 to submit the results of the test code and run shots, submit Screenshot commissioning, to full-screen, contains its own student number information
6 published a blog in blog Park, problems encountered and solutions focus on writing process

Experiment Code

myod.c

#include "head.h"
#include <stdio.h>
void main()
{ 
  char name[50];
  printf("please input the txtname:");
  scanf("%s",name);
  ascii(name);
  hex(name);
}

ascii.c

#include "head.h"
#include <stdio.h>
void ascii(char *name)
{
      FILE *fp;
      char ch;
      fp=fopen(name,"r");
      ch=fgetc(fp);
      printf("output the ascii:\n");

  while(ch!=EOF)
  {
     if(ch=='\n')
        printf("\n");
     else
        printf("%4d",ch);
        ch=fgetc(fp);
  }
  fclose(fp);

}

hex.c

#include "head.h"
#include <stdio.h>
void hex(char *name)
{
  FILE *fp;
  char ch;
  printf("output the hex:\n");
  fp=fopen(name,"r");
  ch=fgetc(fp);
  while(ch!=EOF)
  {
    if(ch=='\n')
    printf("\n");
    else
    printf("%4x",ch);
    ch=fgetc(fp);
   }
   fclose(fp);
}

head.h

void hex(char *name);
void ascii(chlsar *name);

experiment process

1. Direct compilation

gcc *.c
./a.out

2. Use static library
will generate static library .o files (to remove myod.c).

gcc -c *.c -o ascii.o
rm myod.o
ar cr myod.a *.o
gcc -o myod12 myod.c -L. myod.a

3. dynamic libraries
to create dynamic library of ascii.c and hex.c.

gcc -shared -fpic -o myod.so hex.c ascii.c
gcc myod.c myod.so