From b345ff63cc4d0ee5aab2283f9c351da6dabb8b50 Mon Sep 17 00:00:00 2001
From: Madeline Busig <madeline.busig@outlook.com>
Date: Tue, 29 Oct 2024 23:41:42 -0700
Subject: [PATCH] Add CMakeLists.txt and answer for problem 1

---
 CMakeLists.txt | 14 ++++++++++++++
 include/p1.h   |  7 +++++++
 src/main.c     | 14 ++++++++++++++
 src/p1.c       | 19 +++++++++++++++++++
 4 files changed, 54 insertions(+)
 create mode 100644 CMakeLists.txt
 create mode 100644 include/p1.h
 create mode 100644 src/main.c
 create mode 100644 src/p1.c

diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..49a2609
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.5)
+
+project(practice_exam_2 C)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+add_executable(${PROJECT_NAME})
+
+file(GLOB proj_sources LIST_DIRECTORIES false CONFIGURE_DEPENDS src/*.c)
+set(proj_include "include")
+
+# Add sources to target
+target_sources(${PROJECT_NAME} PRIVATE "${proj_sources}")
+target_include_directories(${PROJECT_NAME} PRIVATE "${proj_include}")
+
diff --git a/include/p1.h b/include/p1.h
new file mode 100644
index 0000000..93580d4
--- /dev/null
+++ b/include/p1.h
@@ -0,0 +1,7 @@
+#ifndef P1_H
+#define P1_H
+
+int count_alphanumeric(const char* str);
+
+#endif
+
diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..4c49769
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,14 @@
+#include <stdio.h>
+
+#include "p1.h"
+
+int main(void) {
+	// Problem 1
+	int num_alphanum = count_alphanumeric("Hello World!!");
+	printf("Number of alphanumeric characters in \"Hello World!!\": %d\n", num_alphanum);
+
+	// Problem 2
+
+	return 0;
+}
+
diff --git a/src/p1.c b/src/p1.c
new file mode 100644
index 0000000..1f5c728
--- /dev/null
+++ b/src/p1.c
@@ -0,0 +1,19 @@
+#include "p1.h"
+
+#include <ctype.h>
+
+int count_alphanumeric(const char* str) {
+	int num_alphanumeric = 0;
+	const char* current = str;
+
+	while (*current != '\0') {
+		if (isalnum(*current)) {
+			++num_alphanumeric;
+		}
+
+		++current;
+	}
+
+	return num_alphanumeric;
+}
+