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| author | Eric Wong <normalperson@yhbt.net> | 2009-08-02 16:16:28 -0700 |
|---|---|---|
| committer | Eric Wong <normalperson@yhbt.net> | 2009-08-09 01:29:40 -0700 |
| commit | 60b4397f51894d5e679a6eed73a8cde957f03c4a (patch) | |
| tree | 9da48622b713dd0f3913f83a83a4c0e420f936ff /ext/unicorn_http/ext_help.h | |
| parent | 074dc90aaefc17dd5a60c3f67187305924849b05 (diff) | |
| download | unicorn-60b4397f51894d5e679a6eed73a8cde957f03c4a.tar.gz | |
The macro version lets us painlessly compare Ruby strings against constant C strings. It wraps a C version of the function which is necessary to avoid double evaluation while preventing the user from having to type sizeof or strlen.
Diffstat (limited to 'ext/unicorn_http/ext_help.h')
| -rw-r--r-- | ext/unicorn_http/ext_help.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/ext/unicorn_http/ext_help.h b/ext/unicorn_http/ext_help.h index fec4f41..19f08c9 100644 --- a/ext/unicorn_http/ext_help.h +++ b/ext/unicorn_http/ext_help.h @@ -18,4 +18,12 @@ static void rb_18_str_set_len(VALUE str, long len) # define rb_str_set_len(str,len) rb_18_str_set_len(str,len) #endif +static inline int str_cstr_eq(VALUE val, const char *ptr, size_t len) +{ + return (RSTRING_LEN(val) == len && !memcmp(ptr, RSTRING_PTR(val), len)); +} + +#define STR_CSTR_EQ(val, const_str) \ + str_cstr_eq(val, const_str, sizeof(const_str) - 1) + #endif |