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Following along in chapter 35.

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1 parent 4d2c878 commit 0914ca11f60469687cda428de5c38ae1113e9366 Nick committed Sep 3, 2013
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+.\"Modified from man(1) of FreeBSD, the NetBSD mdoc.template, and mdoc.samples.
+.\"See Also:
+.\"man mdoc.samples for a complete listing of options
+.\"man mdoc for the short list of editing options
+.\"/usr/share/misc/mdoc.template
+.Dd 9/2/13 \" DATE
+.Dt gradeInTheShade 1 \" Program name and manual section number
+.Os Darwin
+.Sh NAME \" Section Header - required - don't modify
+.Nm gradeInTheShade,
+.\" The following lines are read in generating the apropos(man -k) database. Use only key
+.\" words here as the database is built based on the words here and in the .ND line.
+.Nm Other_name_for_same_program(),
+.Nm Yet another name for the same program.
+.\" Use .Nm macro to designate other names for the documented program.
+.Nd This line parsed for whatis database.
+.Sh SYNOPSIS \" Section Header - required - don't modify
+.Nm
+.Op Fl abcd \" [-abcd]
+.Op Fl a Ar path \" [-a path]
+.Op Ar file \" [file]
+.Op Ar \" [file ...]
+.Ar arg0 \" Underlined argument - use .Ar anywhere to underline
+arg2 ... \" Arguments
+.Sh DESCRIPTION \" Section Header - required - don't modify
+Use the .Nm macro to refer to your program throughout the man page like such:
+.Nm
+Underlining is accomplished with the .Ar macro like this:
+.Ar underlined text .
+.Pp \" Inserts a space
+A list of items with descriptions:
+.Bl -tag -width -indent \" Begins a tagged list
+.It item a \" Each item preceded by .It macro
+Description of item a
+.It item b
+Description of item b
+.El \" Ends the list
+.Pp
+A list of flags and their descriptions:
+.Bl -tag -width -indent \" Differs from above in tag removed
+.It Fl a \"-a flag as a list item
+Description of -a flag
+.It Fl b
+Description of -b flag
+.El \" Ends the list
+.Pp
+.\" .Sh ENVIRONMENT \" May not be needed
+.\" .Bl -tag -width "ENV_VAR_1" -indent \" ENV_VAR_1 is width of the string ENV_VAR_1
+.\" .It Ev ENV_VAR_1
+.\" Description of ENV_VAR_1
+.\" .It Ev ENV_VAR_2
+.\" Description of ENV_VAR_2
+.\" .El
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+FILE_1 description
+.It Pa /Users/joeuser/Library/really_long_file_name
+FILE_2 description
+.El \" Ends the list
+.\" .Sh DIAGNOSTICS \" May not be needed
+.\" .Bl -diag
+.\" .It Diagnostic Tag
+.\" Diagnostic informtion here.
+.\" .It Diagnostic Tag
+.\" Diagnostic informtion here.
+.\" .El
+.Sh SEE ALSO
+.\" List links in ascending order by section, alphabetically within a section.
+.\" Please do not reference files that do not exist without filing a bug report
+.Xr a 1 ,
+.Xr b 1 ,
+.Xr c 1 ,
+.Xr a 2 ,
+.Xr b 2 ,
+.Xr a 3 ,
+.Xr b 3
+.\" .Sh BUGS \" Document known, unremedied bugs
+.\" .Sh HISTORY \" Document history if command behaves in a unique manner
@@ -0,0 +1,47 @@
+//
+// main.c
+// gradeInTheShade
+//
+// Created by Nicholas Squire on 9/2/13.
+// Copyright (c) 2013 Nicholas Squire. All rights reserved.
+//
+
+#include <stdio.h>
+//#include <stdlib.h> // malloc(), free()
+
+float averageFloats(float data[], int dataCount)
+{
+ float sum = 0.0;
+ for (int i = 0; i < dataCount; i++) {
+ sum = sum + data[i];
+ }
+ return sum / dataCount;
+}
+
+int main(int argc, const char * argv[])
+{
+ // Create an array of floats
+ //float *gradeBook = malloc(3 * sizeof(float)); // malloc stores on heap
+
+ // Declares the array as part of the frame
+ float gradeBook[] = {60.2, 94.5, 81.1};
+
+// gradeBook[0] = 60.2;
+// gradeBook[1] = 94.5;
+// gradeBook[2] = 81.1;
+
+ // Calculate the average
+ float average = averageFloats(gradeBook, 3);
+
+ // Free the array
+ //free(gradeBook);
+ //gradeBook = NULL;
+
+ // No need to free the array!
+ // Cleanup happens automatically when the function returns
+
+ printf("Average = %.2f\n", average);
+
+ return 0;
+}
+

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