Write a function called

Write a function called convert_weight. This function should convert between pounds and kilograms, and vice versa. Here is the prototype for this function:

void convert_weight(int, char[], int*, char[]);

There are 2.2 pounds per kilogram.

The second and forth parameters are strings, which specify the units ("lbs" or "kgs"). An example call to this function is:

#include <stdio.h>

int main() {

char newline, another = 'y';

int weight1, weight2;

char units1[4], units2[4]; // length 4 because of '\0'

while (another == 'y') {

printf("Enter a weight and the units of the weight (lbs or kgs)\n");

scanf("%d %s", &weight1, units1);

convert_weight(weight1, units1, &weight2, units2);

printf("%d %s = %d %s\nAnother (y or n)\n", weight1, units1, weight2, units2);

scanf("%c%c", &newline, &another) ;

}

return 0;

}

Write a function called strcat373, which concatenates two strings in precisely the same way that strcat does from the C library <string.h>. The concatened string is constructed in the array string1; a pointer to the beginning of this array is also returned. string2 should not be affected by this function. Please use "array syntax" in strcat373; that is, the parameters as well as the local variables should not use the explicit pointer declaration (using the * symbol), with the exception of the value that is returned by this function. Instead, you should used the [ ] operator. You may not use any of the built-in C string library functions to complete this code.

Here is the prototype of this function:

char *strcat373(char string1[ ], char string2[ ]);

And here is a main function which calls strcat373.

int main() {

char str1[81], str2[81];

char again = 'y', newline;

while (again == 'y') {

printf("Enter a string\n");

scanf("%s", str1);

printf("Enter another string\n");

scanf("%s", str2);

printf("The concatention is %s\n", strcat373(str1, str2));

printf("Second test: The concatenation is %s\n", str1);

printf("The second string is still %s\n", str2);

printf("Again? (y/n)\n");

scanf("%c%c", &newline, &again);

}

}

Write a function called strcmp373, which compares two strings in precisely the same way that strcmp does in the C library <string.h>. Please be sure that you emulate the strcmp C function. Note that strcmp returns 0 if the two strings are equal, even though 0 normally means false in C. This time, please use "pointer syntax" in writing this function. That is, the [ ] operator should not be used at all when referring to particular characters in string1 and string2; instead, all parameters and local variables should be declared as pointers (using the * symbol). You may not use any of the built-in C string library functions to complete this code.

Here is the prototype of this function:

int strcmp373(char *string1, char *string2);

And here is a main function which you can use to test strcmp373.

int main() {

char str1[81], str2[81];

char again = 'y', newline;

while (again == 'y') {

printf("Enter a string\n");

scanf("%s", str1);

printf("Enter another string\n");

scanf("%s", str2);

int comp = strcmp373(str1, str2);

if (comp < 0)

printf("%s is alphabetically before %s\n", str1, str2);

else if (comp > 0)

printf("%s is alphabetically after %s\n", str1, str2);

else printf("%s and %s are the same\n", str1, str2);

printf("Again? (y/n)\n");

scanf("%c%c", &newline, &again);

}

}