C Language in one file

review.c

/*
	C Language in one file
	by RedToor - sep, 27' 2016
	C - gcc review.c -o review.o -fpermissive
	X - ./review.o
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#undef  FILE_SIZE
#define FILE_SIZE 42

#ifndef START
   #define START "C Programming"
#endif

#define  Message(a, b)  \
   printf("\n{Message}" #a " and " #b " : Hi!\n")

#define subtract(a,b) ((a)-(b))

#define port 80
static int count = 5; 
typedef int integer;

void exit(int status);
void func(void);
void *ptr; 

union Data {
   int i;
   float f;
   char str[20];
};

typedef struct MyStructure {
	int  id:1;
	char Name[3];
	int  Age;
} MyStructure;

int add(int a, int b){
	return a + b;
}

typedef int (*compare_func)(int a, int b);

int compare(int a, int b, compare_func compare_algorithm)
{
	int result = compare_algorithm(a, b);
	return result;
}

int max(int a, int b)
{
	int result;
	if (a > b){result = a;}else{result = b;}
	return result;
}

int min(int a, int b)
{
	int result;
	if (a < b){result = a;}else{result = b;}
	return result;
}

void func( void ) {
   static int i = 5; 
   i++;
   printf("{static Storage Class} i is %d and count is %d\n", i, count);
}

int main(int argc, const char* args[]){
	const int portconst = 1000;
	printf("\n(C) Language structure.\n\n");
	printf("File :%s\n", __FILE__ );
	printf("Date :%s\n", __DATE__ );
	printf("Time :%s\n", __TIME__ );
	printf("Line :%d\n", __LINE__ );
	printf("ANSI :%d\n", __STDC__ );
	printf("Integer Types\n");
	printf("char           : %dBytes (-128 to 127 or 0 to 255)\n",sizeof(char));
	printf("unsigned char  : %dBytes (0 to 255)\n",sizeof(unsigned char));
	printf("signed char    : %dBytes (-128 to 127)\n",sizeof(signed char));
	printf("int            : %dBytes (-32,768 to 32,767 or -2,147,483,648 to 2,147,483,647)\n",sizeof(int));
	printf("unsigned int   : %dBytes (0 to 65,535 or 0 to 4,294,967,295)\n",sizeof(unsigned int));
	printf("short          : %dBytes (-32,768 to 32,767)\n",sizeof(short));
	printf("unsigned short : %dBytes (0 to 65,535)\n",sizeof(unsigned short));
	printf("long           : %dBytes (-2,147,483,648 to 2,147,483,647)\n",sizeof(long));
	printf("unsigned long  : %dBytes (0 to 4,294,967,295)\n",sizeof(unsigned long));
	printf("Floating-Point Types\n");
	printf("float          : %dBytes (1.2E-38 to 3.4E+38)\n",sizeof(float));
	printf("double         : %dBytes (2.3E-308 to 1.7E+308)\n",sizeof(double));
	printf("long double    : %dBytes (3.4E-4932 to 1.1E+4932)\n",sizeof(long double));
	int a=10;
	int b=10;
	if (a==b){printf("The variable 'a' is equals to 'b' variable\n");}
	for(int c=0; 2 > c;c++){printf("{for} The variable 'c' is %i\n",c);}
	while(1){printf("{while} into bucle\n");break;}
	switch(2) {
		case 1: 
			printf("{switch} This A is part of outer switch\n" );
			break;
		case 2:
			printf("{switch} This A is part of outer switch\n" );
			break;
	}
	do {
		printf("{do while} value of a: %d\n", a);
		a = a + 1;
	}while( a < 12 );
	int cnum=2;ptr = &cnum;printf("{void *ptr} pointer Void as integer : %i\n",*((int*)ptr));
	float cfloat=10.10;ptr = &cfloat;printf("{void *ptr} pointer Void as float : %f\n",*((float*)ptr));
	char cchar[]="a";ptr = &cchar;printf("{void *ptr} pointer Void as char : %c\n",*((char*)ptr));
	printf("{#define} Global Constant %i\n", port);
	printf("Constant Keyword %i\n", portconst);
	struct MyStructure *LocalStructure;
	strcpy(LocalStructure->Name,"Red");
	LocalStructure->Age=53;
	printf("{typedef struct MyStructure} Set 'Name' %s, 'Age' %i  and 'id' %d variables \n",LocalStructure->Name,LocalStructure->Age,sizeof(LocalStructure));
	free(LocalStructure->Name);
	free(LocalStructure);
	printf("{function add} add funcion 8+8:%i\n",add(8,8));
	printf("{function subtract} add funcion 4-8:%i\n",subtract(4,8));
	integer number = 10;
	printf("{typedef int integer} My own type variable %i\n",number);
	enum boolean
	{
		NO,
		YES
	};
	printf("The Boolean variable is true: %d false: %d\n", YES, NO);
	int compA = compare(8, 90, max);
	printf("{Pointer functions} the highest number between 8 and 90 is %d\n", compA);
	while(count--) {
      func();
   }
   int d;
   d = (2 == 1) ? 20 : 30;
   printf( "{ternary operator} Value of 'd' is %d\n", b );
   LABEL:
		printf("{goto} In label section");
		goto NEXT;
	goto LABEL;
	NEXT:
		Message("Red","TOOR");
		int n[3];
		for ( int i = 0; i < 3; i++ ) { n[i] = i + 100; }
		for (int j = 0; j < 3; j++ ) {
			printf("{array} Element[%d] = %d\n", j, n[j] );
			}
		char mystring[] = "Hello";
		char myvar[strlen(mystring)];
		strcpy(myvar, mystring);printf("{strcpy} the strings copied %s\n", myvar);
		strcat(myvar, mystring);printf("{strcat} the strings copied %s\n", myvar);
		printf("{strcmp} the diference is %d\n",strcmp(mystring,"Hellod"));
		union Data data;        
		data.i = 10;
		data.f = 220.5;
		strcpy( data.str, "C Programming");
		printf("{union} data.i : %d\n", data.i);
		printf("{union} data.f : %f\n", data.f);
		printf("{union} data.str : %s\n", data.str);
		char str2[100];
		printf( "{gets} Enter a value :");
		gets( str2 );
		printf( "{puts} You entered: ");
		puts( str2 );
		char str3[100];
		int i;
		printf("{scanf} Enter a value :");
		scanf("%s %d", str3, &i);
		printf("\n{printf} You entered: %s lenght %d", str3, i);
		int c;
		printf("\n{getchar} Enter a value :");
		c = getchar( );
		printf("\n{putchar} You entered: %c",putchar(c));
		FILE *fp;
		fp = fopen("test.txt", "w+");
		fprintf(fp, "testing\n");
		fputs("testing\n", fp);
		fclose(fp);
		return 0;
}