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user:psechris:portfolio:cprogproject8 [2013/02/20 17:45] – [Execution] psechrisuser:psechris:portfolio:cprogproject8 [2013/03/13 14:02] (current) psechris
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 +======Project: More Pointer Fun!!!======
  
 +A project for CSCS 1320 by Paul Sechrist during the Spring 2013.
 +=====Objectives=====
 +State the purpose of this project. What is the point of this project? What do we hope to accomplish by undertaking it?
 +
 +
 +=====Code=====
 +
 +<code c 1>
 +#include <stdio.h>
 +#include <stdlib.h>
 +
 +#define NUM_SCORES 5
 +#define SCORE0 87
 +#define SCORE1 92
 +#define SCORE2 97
 +#define SCORE3 83
 +#define SCORE4 79
 +
 +int main()
 +{
 +        unsigned char *scores;
 +        float average;
 +
 +        scores = (unsigned char *) malloc (sizeof(unsigned char) * NUM_SCORES);
 +        *(scores+0) = SCORE0;
 +        *(scores+1) = SCORE1;
 +        *(scores+2) = SCORE2;
 +        *(scores+3) = SCORE3;
 +        *(scores+4) = SCORE4;
 +
 +        average = ((float)(SCORE0+SCORE1+SCORE2+SCORE3+SCORE4)/NUM_SCORES);
 +        fprintf(stdout, "Your scores are, %hhu, %hhu, %hhu, %hhu, %hhu\n", SCORE0, SCORE1, SCORE2, SCORE3, SCORE4);
 +        fprintf(stdout, "Your average is, %f\n", average);
 +
 +        return(0);
 +}
 +</code>
 +
 +=====Execution=====
 +
 +<cli>
 +lab46:~/src$ ./pointerarrays
 +Your scores are, 87, 92, 97, 83, 79
 +Your average is, 87.599998
 +lab46:~/src$ 
 +</cli>
 +<cli>
 +lab46:~/src$ gcc -o gettinginput1 gettinginput1.c
 +gettinginput1.c:28: warning: passing argument 1 of 'fprintf' from incompatible pointer type
 +/usr/include/stdio.h:333: note: expected 'struct FILE * __restrict__' but argument is of type 'char *'
 +gettinginput1.c:28: warning: passing argument 2 of 'fprintf' makes pointer from integer without a cast
 +/usr/include/stdio.h:333: note: expected 'const char * __restrict__' but argument is of type 'int'
 +gettinginput1.c:29: warning: passing argument 1 of 'fprintf' from incompatible pointer type
 +/usr/include/stdio.h:333: note: expected 'struct FILE * __restrict__' but argument is of type 'char *'
 +gettinginput1.c:29: warning: passing argument 2 of 'fprintf' makes pointer from integer without a cast
 +/usr/include/stdio.h:333: note: expected 'const char * __restrict__' but argument is of type 'short int'
 +gettinginput1.c:30: warning: passing argument 1 of 'fprintf' from incompatible pointer type
 +/usr/include/stdio.h:333: note: expected 'struct FILE * __restrict__' but argument is of type 'char *'
 +gettinginput1.c:30: warning: passing argument 2 of 'fprintf' makes pointer from integer without a cast
 +/usr/include/stdio.h:333: note: expected 'const char * __restrict__' but argument is of type 'char'
 +gettinginput1.c:31: warning: passing argument 1 of 'fprintf' from incompatible pointer type
 +/usr/include/stdio.h:333: note: expected 'struct FILE * __restrict__' but argument is of type 'char *'
 +gettinginput1.c:31: error: incompatible type for argument 2 of 'fprintf'
 +/usr/include/stdio.h:333: note: expected 'const char * __restrict__' but argument is of type 'float'
 +</cli>
 +<cli>
 +lab46:~/src$ ./gettinginput1
 +Enter an integer: 1
 +Enter another integer: 2
 +Enter a short int: 3
 +Enter a char: Enter a float value: 4
 +Your ints are: 1 and 2
 +Your short int is: 3
 +Your char is: '
 +'
 +Your float (trimmed at 2 decimal places) is: 4.00
 +lab46:~/src$
 +</cli>