From be94e873b06e2e0b97d2d5c51c7298da5ac34295 Mon Sep 17 00:00:00 2001
From: Ren Kararou <ren@kararou.space>
Date: Fri, 13 Oct 2023 12:32:44 -0500
Subject: [PATCH] initial commit; fizzbuzz complete

---
 .gitignore                |  4 ++++
 c/fizzbuzz/.gitignore     |  1 +
 c/fizzbuzz/makefile       | 36 ++++++++++++++++++++++++++++
 c/fizzbuzz/src/main.c     | 49 +++++++++++++++++++++++++++++++++++++++
 rust/fizzbuzz/Cargo.lock  |  7 ++++++
 rust/fizzbuzz/Cargo.toml  |  8 +++++++
 rust/fizzbuzz/src/main.rs | 15 ++++++++++++
 7 files changed, 120 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 c/fizzbuzz/.gitignore
 create mode 100644 c/fizzbuzz/makefile
 create mode 100644 c/fizzbuzz/src/main.c
 create mode 100644 rust/fizzbuzz/Cargo.lock
 create mode 100644 rust/fizzbuzz/Cargo.toml
 create mode 100644 rust/fizzbuzz/src/main.rs

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c73965b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+bld/
+dbg/
+obj/
+target/
diff --git a/c/fizzbuzz/.gitignore b/c/fizzbuzz/.gitignore
new file mode 100644
index 0000000..b97647c
--- /dev/null
+++ b/c/fizzbuzz/.gitignore
@@ -0,0 +1 @@
+bld
diff --git a/c/fizzbuzz/makefile b/c/fizzbuzz/makefile
new file mode 100644
index 0000000..7180b3f
--- /dev/null
+++ b/c/fizzbuzz/makefile
@@ -0,0 +1,36 @@
+########################
+# (c) Ren Kararou 2023 #
+# All rights reserved  #
+########################
+
+# For use with GNU Make
+
+CFLAGS ?= -Wall -Wextra -march=native -O3 -flto=thin -funroll-loops
+
+.PHONY : all
+all : bld/fizzbuzz
+
+.PHONY : debug
+debug : bld/fizzbuzz-dbg
+
+obj/%.o : src/%.c
+	@mkdir -p obj
+	@cc $(CFLAGS) -c -o $@ $<
+
+bld/fizzbuzz : obj/main.o
+	@mkdir -p bld
+	@cc $(CFLAGS) -o $@ $<
+	@llvm-strip $@
+
+dbg/%-dbg.o : src/%.c
+	@mkdir -p dbg
+	@cc --debug $(CFLAGS) -c -o $@ $<
+
+bld/fizzbuzz-dbg : dbg/main-dbg.o
+	@mkdir -p bld
+	@cc --debug $(CFLAGS) -o $@ $<
+
+.PHONY : clean
+clean :
+	@rm -rf obj bld dbg
+
diff --git a/c/fizzbuzz/src/main.c b/c/fizzbuzz/src/main.c
new file mode 100644
index 0000000..e7aced1
--- /dev/null
+++ b/c/fizzbuzz/src/main.c
@@ -0,0 +1,49 @@
+/************************
+ * (c) Ren Kararou 2023 *
+ * All rights reserved  *
+ ************************/
+
+#include <stdio.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdint.h>
+
+#define RUNTO		999999999
+#define MAXDIGITSYO	10
+#define MAXBUFFERYO	(MAXDIGITSYO*2)
+static volatile uint8_t run = 1;
+
+void siginthandl(int _notused) {
+	run = 0;
+}
+
+int main(/* int argc, char** argv */) {
+	//setup signal handling
+	signal(SIGINT, siginthandl);
+
+	for (int i = 1; i < RUNTO; i++) { // if we ever get this high we've won computing.
+		if (run) {
+			// setup a buffer, 10 digits is all we need, since we're only going up to 999999999 (plus a null terminator)
+			char buf[MAXBUFFERYO] = "\0";
+			// gotta get that return value.
+			int pos = 0;
+			if (i % 3 == 0) {
+				pos = snprintf(buf+pos, MAXBUFFERYO-pos, "fizz");
+				if (pos < 0) return ENOMEM;
+			}
+			if (i % 5 == 0) {
+				pos = snprintf(buf+pos, MAXBUFFERYO-pos, "buzz");
+				if (pos < 0) return ENOMEM;
+			}
+			if (pos == 0) {
+				pos = snprintf(buf+pos, MAXBUFFERYO-pos, "%d", i);
+				if (pos < 0) return ENOMEM;
+			}
+			puts(buf);
+		} else {
+			break;
+		}
+	}
+	return 0; // SUCCESS!
+}
+
diff --git a/rust/fizzbuzz/Cargo.lock b/rust/fizzbuzz/Cargo.lock
new file mode 100644
index 0000000..a091d7f
--- /dev/null
+++ b/rust/fizzbuzz/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "fizzbuzz"
+version = "0.1.0"
diff --git a/rust/fizzbuzz/Cargo.toml b/rust/fizzbuzz/Cargo.toml
new file mode 100644
index 0000000..f7a4018
--- /dev/null
+++ b/rust/fizzbuzz/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "fizzbuzz"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/rust/fizzbuzz/src/main.rs b/rust/fizzbuzz/src/main.rs
new file mode 100644
index 0000000..f72c0b3
--- /dev/null
+++ b/rust/fizzbuzz/src/main.rs
@@ -0,0 +1,15 @@
+/************************
+ * (c) Ren Kararou 2023 *
+ * All rights reserved  *
+ ************************/
+
+// A memory safe fizzbuzz in rust is much smaller than the same in C, turns out.
+
+fn main() {
+    for i in 1..999999999 {
+        if i % 3 == 0 && i % 5 == 0 { println!("fizzbuzz"); }
+        else if i % 3 == 0 { println!("fizz"); }
+        else if i % 5 == 0 { println!("buzz"); }
+        else { println!("{i}"); }
+    }
+}