X-Git-Url: https://www.bearssl.org/gitweb//home/git/?p=BearSSL;a=blobdiff_plain;f=inc%2Fbearssl.h;h=56df3ecb5197873690c5dc14344c7157d0095acd;hp=6258e92605f735869b087f9beee03f31eeea6f89;hb=89ea3b1876d6a17a754c1f80c74f5076eccda866;hpb=e683ebfe1962ef5b00a972761984674528922a4a

diff --git a/inc/bearssl.h b/inc/bearssl.h
index 6258e92..56df3ec 100644
--- 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