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-rw-r--r--gcc/doc/cpp.texi7
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/doc/cpp.texi b/gcc/doc/cpp.texi
index 195fcda..328cc59 100644
--- a/gcc/doc/cpp.texi
+++ b/gcc/doc/cpp.texi
@@ -4200,9 +4200,10 @@ program will run on. Assertions are usually predefined, but you can
define them with preprocessing directives or command-line options.
Assertions were intended to provide a more systematic way to describe
-the compiler's target system. However, in practice they are just as
-unpredictable as the system-specific predefined macros. In addition, they
-are not part of any standard, and only a few compilers support them.
+the compiler's target system and we added them for compatibility with
+existing compilers. In practice they are just as unpredictable as the
+system-specific predefined macros. In addition, they are not part of
+any standard, and only a few compilers support them.
Therefore, the use of assertions is @strong{less} portable than the use
of system-specific predefined macros. We recommend you do not use them at
all.