New "i62" code for big integers with 64x64->128 opcodes; also improved "i31" modular...

[BearSSL] / inc / bearssl.h

diff --git a/inc/bearssl.h b/inc/bearssl.h
index 6258e92..56df3ec 100644 (file)
--- a/inc/bearssl.h
+++ b/inc/bearssl.h
@@ -72,7 +72,17 @@
  * does not include much failsafes or error reporting when the problem
  * does not arise from external transient conditions, and can be fixed
  * only in the application code. This is done so in order to make the
- * total code footprint ligther.
+ * total code footprint lighter.
+ *
+ *
+ * ## `NULL` values
+ *
+ * Function parameters with a pointer type shall not be `NULL` unless
+ * explicitly authorised by the documentation. As an exception, when
+ * the pointer aims at a sequence of bytes and is accompanied with
+ * a length parameter, and the length is zero (meaning that there is
+ * no byte at all to retrieve), then the pointer may be `NULL` even if
+ * not explicitly allowed.
  *
  *
  * ## Memory Allocation