This will show You about simple using pointer in C.
#include<stdio.h>
int main(void){
int y, x = 87;
int *px;
px = &x;
y = *px;
printf("Giving x = 87 (integer)\n");
printf("px = &x;\n");
printf("y = *px;\n\n");
printf("Address of x = %p\n", &x);
printf("Content of px = %p\n", px);
printf("Content of x = %d\n", x);
printf("Value that being pointed by px = %d\n", *px);
printf("Value of y = %d\n", y);
return 0;
}
I'm listening to the Indonesia Folk Song, called "Dayung Sampan". This song accompany me during finishing my last task..:)
This code will explain You how to copy from one array to another array..
#include<stdio.h>
#define MAKS 30
int main(void){
int i;
char asal[] = "I like C...";
char hasil[MAKS];
i = 0;
while(asal[i] != '\0'){
hasil[i] = asal[i];
i++;
}
hasil[i] = '\0'; // give null char
printf("Content of hasil: %s\n", hasil);
//return 0;
}
This is the another method, we are using string.h
#include<stdio.h>
#include<string.h>
char line[100]; //max 100 chars of input
int main(void){
printf("Enter the sentence: \n");
fgets(line, sizeof(line), stdin);
printf("The length of the sentence is: %d\n", strlen(line));
return 0;
}
This is one ef the C code that will count the char of sentence that we've input before.
#include<stdio.h>
#define MAKS 256
int main(void){
int i, jumkar = 0;
char teks[MAKS];
puts("Please insert a sentence (max 256 char): ");
puts("I'll count sum of char on its sentence. ");
fgets(teks, sizeof teks, stdin); //input from keyboard
for(i=0;teks[i];i++)
jumkar++;
printf("\n Sum of char = %d\n", jumkar);
return 0;
}
This is just want to show You the reader, how to show integer to hexadecimal and octal. And also show the memory location.
/* menampilkan desimal dan heksadesimal */
#include<stdio.h>
int main(void){
int X;
printf("Please insert integer number: ");
scanf("%d", &X);
printf("%d is %#x in hexadecimal and %o in octal.\n", X, X, X );
printf("%d is in memory address %p", X, &X);
printf("\n");
return 0;
}
This is the example:
#include<stdio.h>
void tulisan1(void);
void tulisan2(void);
int main(void){
tulisan1();
tulisan2();
}
void tulisan1(void){
char array1[] =
{'T','a','m','p','i','l','k','a','n','\0'};
puts(array1);
}
void tulisan2(void){
char array2[] = "Tampilkan";
printf("%s\n", array2);
}
Now, we'll show how to get input string from keyboard using C. This is the example:
/* Example using gets() and scanf() to input string.
*/
#include<stdio.h>
int main(void){
char name[15];
printf("Insert Your name please: ");
gets(name);
// or scanf("%s", name);
printf("Halo, %s. Happy enjoying C. \n", name);
}
I use MASM and RadAsm-IDE for learning assembler.
This is the example, print "hello world":
Now we'll try to using array to find rate of input values. This is the code:
*/ therudi.com Oct 1, 2009 */
#include <stdio.h>
#define MAKS 5
int main(void){
int i;
float total = 0, rata;
float nilai_tes[MAKS]; /* deklarasi array */
for(i=0; i<MAKS; i++){
printf("Nilai tes ke-%d : ", i+1);
scanf("%f", &nilai_tes[i]);
/* hitung jumlah total nilai */
total = total + nilai_tes[i];
}
rata = total / MAKS;
/* cetak nilai rata2 */
printf("\nNilai rata-rata = %g\n", rata);
return 0;
}
