From 64859168b07b384412611cc281a4741575c17bf6 Mon Sep 17 00:00:00 2001
From: Abraham Hernandez <abraham@abranhe.com>
Date: Fri, 9 Nov 2018 00:18:38 -0500
Subject: [PATCH] init

---
 .editorconfig |   8 ++++
 .gitignore    |  10 +++++
 .travis.yml   |   9 +++++
 Makefile      |  40 +++++++++++++++++++
 binary.c      |  61 +++++++++++++++++++++++++++++
 binary.h      |  29 ++++++++++++++
 example.c     |   8 ++++
 license       |  21 ++++++++++
 package.json  |  14 +++++++
 readme.md     |  91 +++++++++++++++++++++++++++++++++++++++++++
 test.c        | 104 ++++++++++++++++++++++++++++++++++++++++++++++++++
 11 files changed, 395 insertions(+)
 create mode 100644 .editorconfig
 create mode 100644 .gitignore
 create mode 100644 .travis.yml
 create mode 100644 Makefile
 create mode 100644 binary.c
 create mode 100644 binary.h
 create mode 100644 example.c
 create mode 100644 license
 create mode 100644 package.json
 create mode 100644 readme.md
 create mode 100644 test.c

diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..ff33cbf
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,8 @@
+root = true
+
+[*.c]
+indent_style = tab
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b4b23c1
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,10 @@
+*.DS_STORE
+*.o
+*.log
+*.gcov
+*.gcda
+*.gcno
+binary
+test
+example
+coverage
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..3216cf8
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,9 @@
+language: c
+compiler:
+# - clang
+- gcc
+script: make run-test
+after_script: sudo pip install cpp-coveralls && make run-coverage && coveralls --exclude test.c
+
+notifications:
+  email: false
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..0dc9fe3
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,40 @@
+TEST = test.c binary.c
+EXAMPLE = example.c binary.c
+OBJ_TEST = $(TEST:.c=.o)
+OBJ_EXAMPLE = $(EXAMPLE:.c=.o)
+
+CFLAGS = -D_GNU_SOURCE -std=c99
+
+LFLAGS = -Wall -Wno-format-y2k -W -Wstrict-prototypes \
+	-Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch \
+	-Wshadow -Wcast-align -Wbad-function-cast -Wchar-subscripts -Winline \
+	-Wnested-externs -Wredundant-decls
+
+COVFLAGS = -Wall -fprofile-arcs -ftest-coverage
+
+test: $(OBJ_TEST)
+	$(CC) $(OBJ_TEST) -o $@
+
+example: $(OBJ_EXAMPLE)
+	$(CC) $(OBJ_EXAMPLE) -o $@
+
+coverage: $(OBJ_TEST)
+	gcc $(COVFLAGS) $(TEST) -o $@
+
+.SUFFIXES: .c .o
+.c.o:
+	$(CC) $< $(CFLAGS) $(LFLAGS) -c -o $@
+
+run-coverage: coverage
+	./coverage && gcov binary
+
+run-test: test
+	./test
+
+run-example: example
+	./example
+
+clean:
+	rm -f coverage test example $(OBJ_TEST) $(OBJ_EXAMPLE) *.gc{ov,da,no}
+
+.PHONY: clean run-coverage run-test
diff --git a/binary.c b/binary.c
new file mode 100644
index 0000000..136d4f3
--- /dev/null
+++ b/binary.c
@@ -0,0 +1,61 @@
+//
+// An small library to work with
+// binary numbers.
+//
+// binary.c
+//
+// MIT licensed.
+// Copyright (c) Abraham Hernandez <abraham@abranhe.com>
+//
+
+#include <stdbool.h>
+
+bool
+is_binary (long long binary) {
+	bool status = true;
+	while(true) {
+		if (binary == 0) break;
+		else {
+			int tmp = binary % 10;
+			if(tmp > 1) {
+				status = false;
+				break;
+			}
+			binary = binary / 10;
+		}
+	}
+	return status;
+}
+
+long
+to_decimal (long long binary) {
+	if(!is_binary(binary)) return -1;
+
+	int decimal = 0;
+	int multiplier = 1;
+
+	while (binary != 0) {
+		decimal += (binary % 10) * multiplier;
+		binary /= 10;
+		multiplier *= 2;
+	}
+	return decimal;
+}
+
+long long to_binary(long number) {
+	long long binary = 0;
+	int remainder;
+	int i = 1;
+
+	while (number != 0) {
+		remainder = number % 2;
+		number /= 2;
+		binary += remainder * i;
+		i *= 10;
+  }
+	return binary;
+}
+
+// TODO:
+// add_binary()
+// substract_binary() ...
diff --git a/binary.h b/binary.h
new file mode 100644
index 0000000..70bcb95
--- /dev/null
+++ b/binary.h
@@ -0,0 +1,29 @@
+#ifndef BINARY_H
+#define BINARY_H
+
+//
+// binary.h
+//
+// MIT licensed.
+// Copyright (c) Abraham Hernandez <abraham@abranhe.com>
+//
+
+#define bool int
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+bool
+is_binary(long binary);
+
+long
+to_decimal(long long binary);
+
+long long to_binary(long number);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // BINARY_H
diff --git a/example.c b/example.c
new file mode 100644
index 0000000..b0b75a0
--- /dev/null
+++ b/example.c
@@ -0,0 +1,8 @@
+#include <stdio.h>
+#include "binary.h"
+
+int main() {
+	printf("%d\n", is_binary(1010));
+	printf("%ld\n", to_decimal(10000000011));
+	printf("%lld\n", to_binary(1000));
+}
diff --git a/license b/license
new file mode 100644
index 0000000..9146125
--- /dev/null
+++ b/license
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) Abraham Hernandez <abraham@abranhe.com> (abranhe.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..af97db7
--- /dev/null
+++ b/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "binary.c",
+  "version": "1.0.0",
+  "description": "An small library to work with binary numbers",
+  "license": "MIT",
+  "keywords": [
+    "binary", "binary-numbers"
+  ],
+  "repo": "abranhe/binary.c",
+  "src": [
+    "binary.h",
+    "binary.c"
+  ]
+}
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..d1988c5
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,91 @@
+<p align="center">
+	<br>
+	<img src="https://cdn.abranhe.com/projects/binary/logo.svg">
+	<br>
+	<br>
+	<b>binary.c</b>: An small C library to work with binary numbers
+	<br>
+</p>
+
+<p align="center">
+	<a href="https://travis-ci.org/abranhe/binary.c"><img src="https://img.shields.io/travis/abranhe/binary.c.svg?logo=travis" /></a>
+	<a href="https://github.com/abranhe"><img src="https://abranhe.com/badge.svg"></a>
+	<a href="https://cash.me/$abranhe"><img src="https://cdn.abranhe.com/badges/cash-me.svg"></a>
+	<a href="https://patreon.com/abranhe"><img src="https://cdn.abranhe.com/badges/patreon.svg" /></a>
+	<a href="https://github.com/abranhe/binary.c/blob/master/license"><img src="https://img.shields.io/github/license/abranhe/binary.c.svg" /></a>
+
+  <br>
+  <br>
+</p>
+In mathematics and digital electronics, a binary number is a number expressed in the base-2 numeral system or binary numeral system, which uses only two symbols: typically 0 and 1.
+
+
+## Installation
+
+*Installing using [Clib](https://github.com/clibs/clib)*
+
+```sh
+$ clib install abranhe/binary.c
+```
+
+## Usage
+
+```c
+#include <stdio.h>
+#include "binary.h"
+
+int main() {
+	printf("%d\n", is_binary(1010));
+	// 1
+	printf("%ld\n", to_decimal(10000000011));
+	// 1027
+	printf("%lld\n", to_binary(1000));
+	// 1111101000
+}
+```
+
+## API
+
+#### `bool is_binary(long binary);`
+
+*Returns true (`1`) if the number is binary, otherwise return false (`0`)*
+
+###### Params:
+
+- `binary`: long binary number
+
+#### `long to_decimal(long long binary);`
+
+*Returns a long decimal number from a binary number*
+
+###### Params:
+
+- `binary`: long binary number
+
+#### `long long to_binary(long decimal);`
+
+*Returns a binary number from a decimal number*
+
+###### Params:
+
+- `decimal`: a long decimal number
+
+## Team
+
+|[![Carlos Abraham Logo][abranhe-img]][abranhe]|
+| :-: |
+| [Carlos Abraham][abranhe] |
+
+## License
+
+[MIT][license] License © [Carlos Abraham][abranhe]
+
+<!-------------------- Links ------------------------>
+[abranhe]: https://github.com/abranhe
+[abranhe-img]: https://avatars3.githubusercontent.com/u/21347264?s=50
+[license]: https://github.com/abranhe/binary.c/blob/master/license
+[example]: https://github.com/abranhe/binary.c/blob/master/example.c
+[travis-badge]: https://img.shields.io/travis/abranhe/binary.c.svg
+[travis-status]: https://travis-ci.org/abranhe/binary.c
+[coverage-badge]: https://img.shields.io/coveralls/abranhe/binary.c.svg
+[coverage-status]: https://coveralls.io/r/abranhe/binary.c?branch=master
diff --git a/test.c b/test.c
new file mode 100644
index 0000000..f140ce8
--- /dev/null
+++ b/test.c
@@ -0,0 +1,104 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "binary.h"
+
+static int assertionCount = 0;
+static int errorCount = 0;
+
+static void
+to_decimal_test(const long long input, const long expected) {
+
+	long result = to_decimal(input);
+
+	if (result != expected) {
+		errorCount++;
+	  fprintf(stderr, "\033[31m");
+		fprintf(stderr, "  (✖) For the binary number `%lld` expected `%ld`, got `%ld`",
+		 	input, expected, result);
+	  fprintf(stderr, "\n\033[0m");
+	  fprintf(stderr, "\n");
+  } else
+  {
+    printf("\033[32m  (✓) Test passed\033[0m\n");
+  }
+  assertionCount++;
+}
+
+static void
+to_binary_test(const long input, const long long expected) {
+
+	long long result = to_binary(input);
+
+	if (result != expected) {
+		errorCount++;
+	  fprintf(stderr, "\033[31m");
+		fprintf(stderr, "  (✖) For the decimal number `%ld` expected `%lld`, got `%lld`",
+		 	input, expected, result);
+	  fprintf(stderr, "\n\033[0m");
+	  fprintf(stderr, "\n");
+  } else
+  {
+    printf("\033[32m  (✓) Test passed\033[0m\n");
+  }
+  assertionCount++;
+}
+
+static void
+is_binary_test(const long long input, const bool expected) {
+
+	bool result = is_binary(input);
+
+	if (result != expected) {
+		errorCount++;
+	  fprintf(stderr, "\033[31m");
+		fprintf(stderr, "  (✖) For the decimal number `%lld` expected `%d`, got `%d`",
+		 	input, expected, result);
+	  fprintf(stderr, "\n\033[0m");
+	  fprintf(stderr, "\n");
+  } else
+  {
+    printf("\033[32m  (✓) Test passed\033[0m\n");
+  }
+  assertionCount++;
+}
+
+int
+main() {
+	to_decimal_test(1001001, 73);
+	to_decimal_test(1, 1);
+	to_decimal_test(111, 7);
+	to_decimal_test(11, 3);
+	to_decimal_test(0, 0);
+
+	to_binary_test(73, 1001001);
+	to_binary_test(1, 1);
+	to_binary_test(7, 111);
+	to_binary_test(3, 11);
+	to_binary_test(0, 0);
+
+	is_binary_test(111, 1);
+	is_binary_test(3377, 0);
+	is_binary_test(10101010, 1);
+	is_binary_test(19, 0);
+	is_binary_test(77777, 0);
+
+  // Log total errors.
+  printf("\n");
+
+  if (errorCount != 0) {
+    printf("\033[31m");
+    printf("(✖) Failed on %d of %d assertions", errorCount, assertionCount);
+    printf("\033[0m");
+    printf("\n");
+    exit(EXIT_FAILURE);
+  }
+
+  // Or, log total successes.
+  printf("\033[32m");
+  printf("(✓) Passed %d assertions without errors", assertionCount);
+  printf("\033[0m");
+  printf("\n");
+
+  return 0;
+}