Exercises/C20/ex1.c

@@ -1,125 +0,0 @@
-// Modified from C18 Ex5
-#include <stdio.h>
-#include <math.h>
-#include <stdlib.h>
-
-#define DEBUG_MAIN
-#define DEBUG_FNS
-
-
-float degrees_to_radians(float degrees) {
-#ifdef DEBUG_FNS
-	printf("degrees_to_radians(degrees=%f): called\n", degrees);
-#endif
-	return M_PI * degrees / 180.0;
-}
-
-
-// Simple function to populate an integer array
-void PopulateTheArray ( int Size, float ArrayData[])
-{
-#ifdef DEBUG_FNS
-	printf("PopulateTheArray(Size=%d, ArrayData): called\n", Size);
-#endif
-    int i;      // Variable to use in our loop
-
-    for ( i = 0 ; i < Size ; i++)
-    {
-        ArrayData[i] = degrees_to_radians(i); // Treat it like a normal array
-    }
-}
-// Simple function do display contents an integer array
-void DisplayTheArray ( int Size, float ArrayData[])
-{
-#ifdef DEBUG_FNS
-	printf("DisplayTheArray(Size=%d, ArrayData): called\n", Size);
-#endif
-    int i;      // Variable to use in our loop
-
-    for ( i = 0 ; i < Size ; i++)
-    {
-#ifdef DEBUG_FNS
-	printf("DisplayTheArray(): i=%d\n", i);
-#endif
-        printf ("%d\t%0.3f\n", i, ArrayData[i]);
-    }
-}
-
-int SaveArrayBinary (char *filename, int Size, float ArrayData[])
-{
-#ifdef DEBUG_FNS
-	printf("DisplayTheArray(filename=%s, Size=%d, ArrayData): called\n", filename, Size);
-#endif
-	FILE *fp;   // File Pointer
-	int i;      // Variable to use in our loop
-
-	fp = fopen(filename, "wb");
-#ifdef DEBUG_FNS
-	printf("DisplayTheArray(): fp=%p\n", fp);
-#endif
-	// if file open failed, return error to caller
-	if (fp == NULL) {
-		return 1;
-	}
-
-	// write data
-	fwrite(ArrayData, sizeof(float), Size, fp);
-	// close file, returns 0 on successful closing (therefore function has executed sucessfully)
-	return fclose(fp);
-}
-// Main () - execution starts here
-int main (void)
-{
-#ifdef DEBUG_MAIN
-	printf("main(): called\n");
-#endif
-	char filename[2049];
-	int rc, iSizeForArray;
-	float *pData;              // A pointer to hold the base address of out array
-
-	// Ask for the size of the array and store result
-
-	printf("Please enter the size of the array to dynamically allocate: ");
-	scanf ("%d", &iSizeForArray);
-#ifdef DEBUG_MAIN
-	printf("main(): iSizeForArray=%d\n", iSizeForArray);
-#endif
-
-	// Use calloc with checking
-	pData = calloc( iSizeForArray, sizeof (float));
-#ifdef DEBUG_MAIN
-	printf("main(): pData=%p\n", pData);
-#endif
-
-	// Check we got the memory
-	if ( pData == NULL)
-	{
-		printf ("Sorry, I could not allocate the memory, bye!\n");
-		return -1;
-	}
-
-	// Pass the size, iSizeForArray) and the pointer created 
-	// which points to the start of the sucesfully allocated memory
-
-	PopulateTheArray(iSizeForArray, pData);
-	DisplayTheArray(iSizeForArray, pData);
-
-	// Exercise doesn't ask to use function but kind of pointless without
-	printf("Enter filename: ");
-	scanf("%2048s", filename);
-#ifdef DEBUG_MAIN
-	printf("main(): filename=%s\n", filename);
-#endif
-	rc = SaveArrayBinary(filename, iSizeForArray, pData);
-#ifdef DEBUG_MAIN
-	printf("main(): rc=%d\n", rc);
-#endif
-	if (rc != 0) {
-		printf("Error saving file\n");
-		free(pData);
-		return rc;
-	}
-
-	free(pData);    // Free up the memory before exiting
-	return (0);     // Exit indicating sucess
-}

Exercises/C21/ex1.c

@@ -1,20 +0,0 @@
-#include <stdlib.h>
-#include <stdio.h>
-
-int main(int argc, char *argv[]) {
-	int age;
-	char name[10];
-
-	if ( argc != 3 )
-	{
-		printf ("USAGE: %s name age\n",argv[0]);
-		exit (0);
-	} 
-
-	sscanf(argv[1],"%s",name);
-	sscanf(argv[2],"%d",&age);
-
-	printf ("age=%d name=%s\n", age, name);
-
-	return 0;
-}

Exercises/C21/ex2.c

@@ -1,44 +0,0 @@
-// Modified from C10 Ex5
-
-#include <stdlib.h>
-#include <stdio.h>
-
-int date_to_day(int year, int month, int day) {
-	if (month < 3) {
-		month += 12;
-		year -= 1;
-	}
-
-	return ((13*month+3)/5 + day + year + year/4 - year/100 + year/400) % 7;
-}
-
-void print_day_of_week(int day) {
-	switch (day) {
-		case 0: printf("Monday\n"); break;
-		case 1: printf("Tuesday\n"); break;
-		case 2: printf("Wednesday\n"); break;
-		case 3: printf("Thursday\n"); break;
-		case 4: printf("Friday\n"); break;
-		case 5: printf("Saturday\n"); break;
-		case 6: printf("Sunday\n"); break;
-	}
-}
-
-int main(int argc, char *argv[]) {
-	int rc, year, month, day, nd;
-
-	if ( argc != 4 )
-	{
-		printf ("USAGE: %s year month day\n",argv[0]);
-		exit (0);
-	} 
-
-	sscanf(argv[1],"%d",&year);
-	sscanf(argv[2],"%d",&month);
-	sscanf(argv[3],"%d",&day);
-
-	nd = date_to_day(year, month, day);
-	print_day_of_week(nd);
-
-	return 0;
-}