Add the files

1 files changed, 42 insertions, 0 deletions

diff --git a/src/common/impl/size.c b/src/common/impl/size.c
new file mode 100644
index 0000000..4e8d1e3
--- /dev/null
+++ b/src/common/impl/size.c
@@ -0,0 +1,42 @@
+#include "common/size.h"
+
+#include <inttypes.h>
+
+static void appendNum(FFstrbuf* result, uint64_t bytes, uint32_t base, const char** prefixes) {
+    const FFOptionsDisplay* options = &instance.config.display;
+    double size = (double) bytes;
+    uint8_t counter = 0;
+
+    while (size >= base && counter < options->sizeMaxPrefix && prefixes[counter + 1]) {
+        size /= base;
+        counter++;
+    }
+
+    if (counter == 0) {
+        ffStrbufAppendUInt(result, bytes);
+    } else {
+        ffStrbufAppendDouble(result, size, (int8_t) options->sizeNdigits, true);
+    }
+    if (options->sizeSpaceBeforeUnit != FF_SPACE_BEFORE_UNIT_NEVER) {
+        ffStrbufAppendC(result, ' ');
+    }
+    ffStrbufAppendS(result, prefixes[counter]);
+}
+
+void ffSizeAppendNum(uint64_t bytes, FFstrbuf* result) {
+    const FFOptionsDisplay* options = &instance.config.display;
+    switch (options->sizeBinaryPrefix) {
+        case FF_SIZE_BINARY_PREFIX_TYPE_IEC:
+            appendNum(result, bytes, 1024, (const char*[]) { "B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB", NULL });
+            break;
+        case FF_SIZE_BINARY_PREFIX_TYPE_SI:
+            appendNum(result, bytes, 1000, (const char*[]) { "B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB", NULL });
+            break;
+        case FF_SIZE_BINARY_PREFIX_TYPE_JEDEC:
+            appendNum(result, bytes, 1024, (const char*[]) { "B", "KB", "MB", "GB", "TB", NULL });
+            break;
+        default:
+            appendNum(result, bytes, 1024, (const char*[]) { "B", NULL });
+            break;
+    }
+}