HelloWorld.c
#include <stdio.h>
int main()
{
printf("Hello, World!\n");
return 0;
}
Main Data Types:
int x = 3;
float y = 3.14;
char z[] = "p";
printf("%d",x);
printf("%f",y);
printf("%s",z);
String Functions:
char name[] = "John Smith";
strlen(name);
strncmp(name, "John Smith");
char dest[] = "Hello";
char src[] = " World";
strncat(dest,src,-1);
Reading Strings:
char name[20];
printf("Enter name: ");
scanf("%s", name);
printf("Your name is %s.", name);
Character Comparison:
char str[] = "abc";
if (str[0] == 97 && str[0] == 'a'){
printf("both equal \n");
}
args:
#include <stdio.h>
int main(int argc, char *argv[])
{
printf("number of args %i \n", argc);
printf("first arg %s \n", argv[1]);
}