Update READMEs

02_fundamentals/Makefile

@@ -5,21 +5,21 @@ CXX = g++
 CFLAGS = -Wall -O3
 
 .PHONY: all
-all: control_structures functions basic_types
+all: basic_types control_structures functions
 
 # Here I'm using some of Make's built in variables: $@ and $<. The former gets substituted with the
 # name of the target. In this case, that's "loops". The latter gets substituted with the first
 # prerequisite. In this case, that's "loops.c". These are hard to remember, but can save you some
 # typing if you decide to rename things.
-control_structures: control_structures.c
+basic_types: basic_types.c
 	$(CC) $(CFLAGS) -o $@ $<
 
-functions: functions.c
+control_structures: control_structures.c
 	$(CC) $(CFLAGS) -o $@ $<
 
-basic_types: basic_types.c
+functions: functions.c
 	$(CC) $(CFLAGS) -o $@ $<
 
 .PHONY: clean
 clean:
-	rm -f control_structures functions basic_types
+	rm -f basic_types control_structures functions

02_fundamentals/README.md

-# Control Structures
+# Fundamentals
 
-These examples demonstrate loops and functions.
+These examples demonstrate C's basic types, how to use control structures like branches and loops,
+and how to write functions.
 
 ```
-demo@linux:02_control_structures$ make
-gcc -Wall -O3 -o loops loops.c
+demo@linux:02_fundamentals$ make
+gcc -Wall -O3 -o basic_types basic_types.c
+gcc -Wall -O3 -o control_structures control_structures.c
 gcc -Wall -O3 -o functions functions.c
+```
+
+```
+demo@linux:02_fundamentals$ ./basic_types
+Signed Integers
+min: -2147483648
+max: 2147483647
+5 - 10 = -5
+
+Unsigned Integers
+min: 0
+max: 4294967295
+5 - 10 = 4294967291
+
+Floating Point
+min: -3.402823e+38
+smallest positive (normalized): 1.175494e-38
+max: 3.402823e+38
+closest float to 1.2: 1.2000000477
+1.2 - 0.2: 1.0000000477
+(0.001 + 1.0) - 1.0 = 0.001000047
+0.001 + (1.0 - 1.0) = 0.001000000
+
+Double Precision Floating Point
+min: -1.797693e+308
+smallest positive (normalized): 2.225074e-308
+max: 1.797693e+308
+closest double to 1.2: 1.19999999999999996
+1.2 - 0.2: 1.00000000000000000
+(1e-6 + 1.0) - 1.0 = 0.000001000000000000024
+1e-6 + (1.0 - 1.0) = 0.000001000000000000000
 
-demo@linux:02_control_structures$ ./loops
+Character
+1$
+numeric 0 (won't show up as anything):
+ASCII 0: 0
+
+Strings
+hello
+```
+
+```
+demo@linux:02_fundamentals$ ./control_structures
 while loop: 0
 while loop: 1
 while loop: 2
@@ -25,7 +68,9 @@ leaving the while loop
 1 is odd
 3 is odd
 i is 42
+```
 
+```
 demo@linux:02_control_structures$ ./functions
 two is even
 three is odd

README.md

@@ -49,4 +49,5 @@ On Windows... honestly I'm not sure. I haven't set up a development environment
 ## Examples
 
 - [hello world](./01_hello_world)
-- [control structures](./02_control_structures)
+- [fundamentals](./02_fundamentals)
+- [inputs and outputs](./03_inputs_and_outputs)