/* * file: memex.c */#include <stdio.h>#include "cdecl.h"#define STR_SIZE 30/* * prototypes */void PRE_CDECL asm_copy( void *,                          const void *,                         unsigned ) POST_CDECL;void * PRE_CDECL asm_find( const void *,                           char target,                           unsigned ) POST_CDECL;unsigned PRE_CDECL asm_strlen( const char * ) POST_CDECL;void PRE_CDECL asm_strcpy( char *,                           const char * ) POST_CDECL;int main(){  char st1[STR_SIZE] = "test string";  char st2[STR_SIZE];  char * st;  char   ch;  asm_copy(st2, st1, STR_SIZE);   /* copy all 30 chars of string */  printf("%s\n", st2);  printf("Enter a char: ");  /* look for byte in string */  scanf("%c%*[^\n]", &ch);  st = asm_find(st2, ch, STR_SIZE);  if ( st )    printf("Found it: %s\n", st);  else    printf("Not found\n");  st1[0] = 0;  printf("Enter string:");  scanf("%s", st1);  printf("len = %u\n", asm_strlen(st1));  asm_strcpy( st2, st1);     /* copy meaningful data in string */  printf("%s\n", st2 );  return 0;}