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| author | Guy Harris <guy@alum.mit.edu> | 2004-10-06 17:52:57 +0000 |
|---|---|---|
| committer | Guy Harris <guy@alum.mit.edu> | 2004-10-06 17:52:57 +0000 |
| commit | 5a244d166b223e904fdea142a495eba38f9fcb28 (patch) | |
| tree | 4d984a3eec1ecbd808fec8ef986e8492a1d26360 /doc | |
| parent | 8b8e67ccbe5228b5ba8a682fe3e0bcec9daf5403 (diff) | |
Note that variadic macros shouldn't be used.
svn path=/trunk/; revision=12224
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/README.developer | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/doc/README.developer b/doc/README.developer index cbca41f014..300be484f4 100644 --- a/doc/README.developer +++ b/doc/README.developer @@ -241,6 +241,23 @@ to implement it. Use something like instead. +Don't use "variadic macros", such as + + #define DBG(format, args...) fprintf(stderr, format, ## args) + +as not all C compilers support them. Use macros that take a fixed +number of arguments, such as + + #define DBG0(format) fprintf(stderr, format) + #define DBG1(format, arg1) fprintf(stderr, format, arg1) + #define DBG2(format, arg1, arg2) fprintf(stderr, format, arg1, arg2) + + ... + +or something such as + + #define DBG(args) printf args + snprintf() -> g_snprintf() snprintf() is not available on all platforms, so it's a good idea to use the g_snprintf() function declared by <glib.h> instead. |