Initial commit

File.c

@@ -0,0 +1,31 @@
+#include "CgeFile.h"
+
+int CgeFileError(CgeFile *file) {
+    int flags;
+
+    CgeFileFlags(file, &flags);
+    return flags & CGE_FILE_ERROR;
+}
+
+int CgeFileEndOfFile(CgeFile *file) {
+    int flags;
+
+    CgeFileFlags(file, &flags);
+    return flags & CGE_FILE_EOF;
+}
+
+int CgeFilePeek(CgeFile *file, char *buffer, size_t size, size_t *actual) {
+    int64_t pos;
+    size_t n = 0;
+
+    if (CgeFileError(file) || CgeFileEndOfFile(file))
+        return 0;
+
+    if (!CgeFileTell(file, &pos) ||
+        !CgeFileRead(file, buffer, size, &n) ||
+        !CgeFileSeek(file, pos, CGE_FILE_SET))
+        return 0;
+
+    if (actual) *actual = n;
+    return 1;
+}