Commit 62bcf005 authored by Dave Reisner's avatar Dave Reisner Committed by Daniel Stenberg
Browse files

typecheck: allow NULL to unset CURLOPT_ERRORBUFFER 

There might be situations where a user would want to unset this option.
Avoid forcing him/her to cast the NULL argument to (char *) in order to
get past the compile time typecheck.
parent 1a416cd2

include/curl/typecheck-gcc.h

+2 −1
Original line number Diff line number Diff line
@@ -392,7 +392,8 @@ _CURL_WARNING(_curl_easy_getinfo_err_curl_slist, 
/* evaluates to true if expr is abuffer suitable for CURLOPT_ERRORBUFFER */

/* XXX: also check size of an char[] array? */

#define _curl_is_error_buffer(expr)                                           \

  (__builtin_types_compatible_p(__typeof__(expr), char *) ||                  \

  (_curl_is_NULL(expr) ||                                                     \

   __builtin_types_compatible_p(__typeof__(expr), char *) ||                  \

   __builtin_types_compatible_p(__typeof__(expr), char[]))



/* evaluates to true if expr is of type (const) void* or (const) FILE* */