diff options
author | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2019-08-16 14:58:02 -0300 |
---|---|---|
committer | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2019-08-16 14:58:02 -0300 |
commit | b96b0b5abbf40cbdbed7952bf35a5a27ddf75928 (patch) | |
tree | 5d9d5463cb7d3424833abab20dd87bce1f4b240f /lstrlib.c | |
parent | ca13be9af784b7288d3a07d9b5bccb329086e885 (diff) | |
download | lua-b96b0b5abbf40cbdbed7952bf35a5a27ddf75928.tar.gz lua-b96b0b5abbf40cbdbed7952bf35a5a27ddf75928.tar.bz2 lua-b96b0b5abbf40cbdbed7952bf35a5a27ddf75928.zip |
Added macro 'luaL_pushfail'
The macro 'luaL_pushfail' documents all places in the standard libraries
that return nil to signal some kind of failure. It is defined as
'lua_pushnil'. The manual also got a notation (@fail) to document those
returns. The tests were changed to be agnostic regarding whether 'fail'
is 'nil' or 'false'.
Diffstat (limited to 'lstrlib.c')
-rw-r--r-- | lstrlib.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -744,7 +744,7 @@ static int str_find_aux (lua_State *L, int find) { | |||
744 | const char *p = luaL_checklstring(L, 2, &lp); | 744 | const char *p = luaL_checklstring(L, 2, &lp); |
745 | size_t init = posrelatI(luaL_optinteger(L, 3, 1), ls) - 1; | 745 | size_t init = posrelatI(luaL_optinteger(L, 3, 1), ls) - 1; |
746 | if (init > ls) { /* start after string's end? */ | 746 | if (init > ls) { /* start after string's end? */ |
747 | lua_pushnil(L); /* cannot find anything */ | 747 | luaL_pushfail(L); /* cannot find anything */ |
748 | return 1; | 748 | return 1; |
749 | } | 749 | } |
750 | /* explicit request or no special characters? */ | 750 | /* explicit request or no special characters? */ |
@@ -779,7 +779,7 @@ static int str_find_aux (lua_State *L, int find) { | |||
779 | } | 779 | } |
780 | } while (s1++ < ms.src_end && !anchor); | 780 | } while (s1++ < ms.src_end && !anchor); |
781 | } | 781 | } |
782 | lua_pushnil(L); /* not found */ | 782 | luaL_pushfail(L); /* not found */ |
783 | return 1; | 783 | return 1; |
784 | } | 784 | } |
785 | 785 | ||