init

.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

.gitignore

@@ -0,0 +1,10 @@
+*.DS_STORE
+*.o
+*.log
+*.gcov
+*.gcda
+*.gcno
+binary
+test
+example
+coverage

.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

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

binary.c

@@ -0,0 +1,61 @@
+//
+// An small library to work with
+// binary numbers.
+//
+// binary.c
+//
+// MIT licensed.
+// Copyright (c) Abraham Hernandez <[email protected]>
+//
+
+#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() ...

binary.h

@@ -0,0 +1,29 @@
+#ifndef BINARY_H
+#define BINARY_H
+
+//
+// binary.h
+//
+// MIT licensed.
+// Copyright (c) Abraham Hernandez <[email protected]>
+//
+
+#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

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));
+}

license

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) Abraham Hernandez <[email protected]> (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.

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"
+  ]
+}

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