5 files changed, 50 insertions, 1 deletions
diff --git a/meson.build b/meson.build
index f5e724d..b07c672 100644
--- a/meson.build
+++ b/meson.build
@@ -4,9 +4,12 @@ lisiblestd_incdir = include_directories('src/')
 lisiblestd_lib = library('lisiblestd', 
   'src/lisiblestd/log.c', 
   'src/lisiblestd/memory.c', 
-  'src/lisiblestd/string.c'
+  'src/lisiblestd/string.c',
+  'src/lisiblestd/bytes.c'
 )
 lisiblestd_dep = declare_dependency(include_directories: lisiblestd_incdir, link_with: [lisiblestd_lib])
 
 test_string = executable('test_string', 'tests/test_runner.c', 'tests/string.c', dependencies: [lisiblestd_dep])
 test('test_string', test_string)
+test_bytes = executable('test_bytes', 'tests/test_runner.c', 'tests/bytes.c', dependencies: [lisiblestd_dep])
+test('test_bytes', test_bytes)
diff --git a/src/lisiblestd/bytes.c b/src/lisiblestd/bytes.c
new file mode 100644
index 0000000..0860800
--- /dev/null
+++ b/src/lisiblestd/bytes.c
@@ -0,0 +1,24 @@
+#include "bytes.h"
+#include "assert.h"
+#include <string.h>
+
+u32 u32_from_bytes(const u8 *bytes) {
+  LSTD_ASSERT(bytes != NULL);
+  return (bytes[0] << 24) + (bytes[1] << 16) + (bytes[2] << 8) + bytes[3];
+}
+u32 u32_from_bytes_le(const u8 *bytes) {
+  LSTD_ASSERT(bytes != NULL);
+  return (bytes[3] << 24) + (bytes[2] << 16) + (bytes[1] << 8) + bytes[0];
+}
+
+u16 u16_from_bytes_le(const u8 *bytes) {
+  LSTD_ASSERT(bytes != NULL);
+  return (bytes[1] << 8) + bytes[0];
+}
+
+float float_from_bytes_le(const u8 *bytes) {
+  LSTD_ASSERT(bytes != NULL);
+  float result;
+  memcpy(&result, bytes, sizeof(float));
+  return result;
+}
diff --git a/src/lisiblestd/bytes.h b/src/lisiblestd/bytes.h
new file mode 100644
index 0000000..8af109b
--- /dev/null
+++ b/src/lisiblestd/bytes.h
@@ -0,0 +1,11 @@
+#ifndef LSTD_BYTES_H
+#define LSTD_BYTES_H
+
+#include "types.h"
+
+u32 u32_from_bytes(const u8 *bytes);
+u32 u32_from_bytes_le(const u8 *bytes);
+u16 u16_from_bytes_le(const u8 *bytes);
+float float_from_bytes_le(const u8 *bytes);
+
+#endif // LSTD_BYTES_H
diff --git a/tests/bytes.c b/tests/bytes.c
new file mode 100644
index 0000000..2d6f95b
--- /dev/null
+++ b/tests/bytes.c
@@ -0,0 +1,10 @@
+#include "test.h"
+#include <lisiblestd/bytes.h>
+
+void t_float_from_bytes_le(void) {
+  const u8 bytes[4] = {154, 153, 137, 64};
+  float number = float_from_bytes_le(bytes);
+  T_ASSERT_FLOAT_EQ(number, 4.3, 0.01);
+}
+
+TEST_SUITE(TEST(t_float_from_bytes_le))
diff --git a/tests/test.h b/tests/test.h
index 223abf5..b81936c 100644
--- a/tests/test.h
+++ b/tests/test.h
@@ -1,6 +1,7 @@
 #ifndef LSTD_TESTS_TEST_H
 #define LSTD_TESTS_TEST_H
 
+#include <math.h> // IWYU pragma: keep
 #include <stdarg.h>
 #include <stdbool.h>
 #include <stdio.h>