Up through lcthw ex7

lcthw/.gdbinit

@@ -0,0 +1 @@
+set debuginfod enabled off

lcthw/.gitignore

@@ -1,2 +1,3 @@
 ex1
 ex3
+ex7

lcthw/Makefile

@@ -1,16 +1,23 @@
 CFLAGS ?= -Wall -g
+GDBRUN = gdb --batch --ex run --ex bt --ex q --args
+BUILD_TARGETS = ex1 ex3 ex7
 
 .PHONY: all
 all: build test
 
 .PHONY: clean
 clean:
-	rm -f ex1 ex3
+	rm -f $(BUILD_TARGETS)
 
 .PHONY: build
-build: ex1 ex3
+build: $(BUILD_TARGETS)
+
+.PHONY: gtest
+gtest:
+	$(foreach bt,$(BUILD_TARGETS),$(GDBRUN) ./$(bt) &&) \
+		echo gyay
 
 .PHONY: test
 test:
-	./ex1
-	./ex3
+	$(foreach bt,$(BUILD_TARGETS),./$(bt) &&) \
+		echo yay

lcthw/ex7.c

@@ -0,0 +1,43 @@
+#include <stdio.h>
+
+int main(int argc, char* argv[])
+{
+	int distance = 100;
+	float power = 2.345f;
+	double super_power = 56789.4532;
+	char initial = 'A';
+	char first_name[] = "Zed";
+	char last_name[] = "Shaw";
+
+	printf("You are %d miles away.\n", distance);
+	printf("You have %f levels of power.\n", power);
+	printf("You have %f awesome super powers.\n", super_power);
+	printf("I have an initial %c.\n", initial);
+	printf("I have a first name %s.\n", first_name);
+	printf("I have a last name %s.\n", last_name);
+	printf("My whole name is %s %c. %s.\n",
+			first_name, initial, last_name);
+
+	int bugs = 100;
+	double bug_rate = 1.2;
+
+	printf("You have %d bugs at the imaginary rate of %f.\n",
+			bugs, bug_rate);
+
+	long universe_of_defects = 1L * 1024L * 1024L * 1024L;
+	printf("The entire universe has %ld bugs.\n", universe_of_defects);
+
+	double expected_bugs = bugs * bug_rate;
+	printf("You are expected to have %f bugs.\n", expected_bugs);
+
+	double part_of_universe = expected_bugs / universe_of_defects;
+	printf("That is only a %e portion of the universe.\n",
+			part_of_universe);
+
+	// this makes no sense, just a demo of something weird
+	char nul_byte = '\0';
+	int care_percentage = bugs * nul_byte;
+	printf("Which means you should care %d%%.\n", care_percentage);
+
+	return 0;
+}