[c/en] Fix spell error, make spacing in comment consistent (#5357)

c.md

@@ -54,7 +54,7 @@ enum days {SUN = 1, MON, TUE, WED = 99, THU, FRI, SAT};
 // For your own headers, use double quotes instead of angle brackets, and
 // provide the path:
 #include "my_header.h" 		// local file
-#include "../my_lib/my_lib_header.h" //relative path
+#include "../my_lib/my_lib_header.h" // relative path
 
 // Declare function signatures in advance in a .h file, or at the top of
 // your .c file.
@@ -333,7 +333,7 @@ int main (int argc, char** argv)
 
   // While loops exist
   int ii = 0;
-  while (ii < 10) { //ANY value less than ten is true.
+  while (ii < 10) { // ANY value less than ten is true.
     printf("%d, ", ii++); // ii++ increments ii AFTER using its current value.
   } // => prints "0, 1, 2, 3, 4, 5, 6, 7, 8, 9, "
 
@@ -474,7 +474,7 @@ int main (int argc, char** argv)
   printf("%d\n", x); // => Prints 1
 
   // Arrays are a good way to allocate a contiguous block of memory
-  int x_array[20]; //declares array of size 20 (cannot change size)
+  int x_array[20]; // declares array of size 20 (cannot change size)
   int xx;
   for (xx = 0; xx < 20; xx++) {
     x_array[xx] = 20 - xx;
@@ -527,7 +527,7 @@ int main (int argc, char** argv)
   size++;
   my_arr = realloc(my_arr, sizeof(int) * size);
   if (my_arr == NULL) {
-    //Remember to check for realloc failure!
+    // Remember to check for realloc failure!
     return
   }
   my_arr[10] = 5;
@@ -572,7 +572,7 @@ int add_two_ints(int x1, int x2)
 /*
 Functions are call by value. When a function is called, the arguments passed to
 the function are copies of the original arguments (except arrays). Anything you
-do to the arguments in the function do not change the value of the original
+do to the arguments in the function does not change the value of the original
 argument where the function was called.
 
 Use pointers if you need to edit the original argument values (arrays are always
@@ -597,7 +597,7 @@ void str_reverse(char *str_in)
     str_in[len - ii - 1] = tmp;
   }
 }
-//NOTE: string.h header file needs to be included to use strlen()
+// NOTE: string.h header file needs to be included to use strlen()
 
 /*
 char c[] = "This is a test.";
@@ -631,14 +631,14 @@ printf("first: %d\nsecond: %d\n", first, second);
 int return_multiple( int *array_of_3, int *ret1, int *ret2, int *ret3)
 {
     if(array_of_3 == NULL)
-        return 0; //return error code (false)
+        return 0; // return error code (false)
 
-    //de-reference the pointer so we modify its value
+    // de-reference the pointer so we modify its value
    *ret1 = array_of_3[0];
    *ret2 = array_of_3[1];
    *ret3 = array_of_3[2];
 
-   return 1; //return error code (true)
+   return 1; // return error code (true)
 }
 
 /*
@@ -666,11 +666,11 @@ printIntArray(my_arr, size);
 // if referring to external variables outside function, you should use the extern keyword.
 int i = 0;
 void testFunc() {
-  extern int i; //i here is now using external variable i
+  extern int i; // i here is now using external variable i
 }
 
 // make external variables private to source file with static:
-static int j = 0; //other files using testFunc2() cannot access variable j
+static int j = 0; // other files using testFunc2() cannot access variable j
 void testFunc2() {
   extern int j;
 }
@@ -682,7 +682,7 @@ void testFunc2() {
 // value across function calls, but is only accessible within the function it
 // is declared in. Additionally, static variables are initialized to 0 if not
 // declared with some other starting value.
-//**You may also declare functions as static to make them private**
+// **You may also declare functions as static to make them private**
 
 ///////////////////////////////////////
 // User-defined types and structs
@@ -783,7 +783,7 @@ typedef void (*my_fnp_type)(char *);
 // Printing characters with printf()
 /////////////////////////////
 
-//Special characters:
+// Special characters:
 /*
 '\a'; // alert (bell) character
 '\n'; // newline character
@@ -801,7 +801,7 @@ typedef void (*my_fnp_type)(char *);
 '\xhh'; // hexadecimal number. Example: '\xb' = vertical tab character
 '\0oo'; // octal number. Example: '\013' = vertical tab character
 
-//print formatting:
+// print formatting:
 "%d";    // integer
 "%3d";   // integer with minimum of length 3 digits (right justifies text)
 "%s";    // string