file: add macros for standard i/o wrappers (ZPL_STDIO_IN, ...)

Author: zpl-zak

CHANGELOG

@@ -1,3 +1,4 @@
+19.2.0  - file: add macros for standard i/o wrappers (ZPL_STDIO_IN, ...)
 19.1.1  - thread: return error values for POSIX calls
 19.1.0  - parser: introduce a new URI parser module
 19.0.4  - fix: zpl_buffer_copy_init missing macros (thanks Ed_ on Discord)

code/header/core/file.h

@@ -112,6 +112,10 @@ typedef enum zpl_file_standard_type {
     ZPL_FILE_STANDARD_COUNT,
 } zpl_file_standard_type;
 
+#define ZPL_STDIO_IN  zpl_file_get_standard(ZPL_FILE_STANDARD_INPUT)
+#define ZPL_STDIO_OUT zpl_file_get_standard(ZPL_FILE_STANDARD_OUTPUT)
+#define ZPL_STDIO_ERR zpl_file_get_standard(ZPL_FILE_STANDARD_ERROR)
+
 /**
  * Get standard file I/O.
  * @param  std Check zpl_file_standard_type