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| author | Gerald Pfeifer <gerald@pfeifer.com> | 2011-02-18 00:10:26 +0000 |
|---|---|---|
| committer | Gerald Pfeifer <gerald@gcc.gnu.org> | 2011-02-18 00:10:26 +0000 |
| commit | f73c8882148d957e05d446755b1038cb10115855 (patch) | |
| tree | e0b1e842946e07b1973c052a2354ecc3620a8b0c /gcc/doc | |
| parent | d764a8e6bdae09aecb7a8378def9d900f84ce53e (diff) | |
| download | gcc-f73c8882148d957e05d446755b1038cb10115855.zip gcc-f73c8882148d957e05d446755b1038cb10115855.tar.gz gcc-f73c8882148d957e05d446755b1038cb10115855.tar.bz2 | |
cpp.texi (Obsolete Features): Add background on the origin of assertions.
* doc/cpp.texi (Obsolete Features): Add background on the
origin of assertions.
From-SVN: r170261
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/cpp.texi | 7 |
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. |