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author | William Wilgus <me.theuser@yahoo.com> | 2018-10-29 02:54:35 -0400 |
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committer | William Wilgus <me.theuser@yahoo.com> | 2018-10-29 23:22:35 -0400 |
commit | eab73b3deead4054ba8a1d9165b577ad935b9a05 (patch) | |
tree | adf00c7efe610bb268a26109aa7cd9de3b26ca09 /apps/plugins/lua/rocklib.h | |
parent | cc0a4c632aeda82ab4517355b4b4489190da013e (diff) | |
download | rockbox-eab73b3deead4054ba8a1d9165b577ad935b9a05.tar.gz rockbox-eab73b3deead4054ba8a1d9165b577ad935b9a05.zip |
Lua replace fscanf
Rocklua was using the full fscanf implementation
to simply read %ld for the file:read("*n") function
wasting 1k on unneeded/unused functionality
Instead, I've implemented a filetol function to duplicate it
without the extra overhead using strtol which as an added bonus
ERANGE errors now resolve to LONG_MIN and LONGMAX instead of
integer overflow
filetol()
reads long int from an open file, skips preceding
whitespaces returns -1 if error, 1 on success.
*num set to LONG_MAX or LONG_MIN on overflow.
If number of digits is > than LUAI_MAXNUMBER2STR
filepointer will continue till the next non digit
but buffer will stop being filled with characters.
Preceding zero is ignored.
Change-Id: Ia42d0f73c63a894625bca4581e9b7e1cc7387fd2
Diffstat (limited to 'apps/plugins/lua/rocklib.h')
-rw-r--r-- | apps/plugins/lua/rocklib.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/apps/plugins/lua/rocklib.h b/apps/plugins/lua/rocklib.h index b650207e67..4714dec36d 100644 --- a/apps/plugins/lua/rocklib.h +++ b/apps/plugins/lua/rocklib.h | |||
@@ -47,6 +47,7 @@ struct lua_str_reg { | |||
47 | 47 | ||
48 | LUALIB_API int (luaopen_rock) (lua_State *L); | 48 | LUALIB_API int (luaopen_rock) (lua_State *L); |
49 | int get_current_path(lua_State *L, int level); | 49 | int get_current_path(lua_State *L, int level); |
50 | int filetol(int fd, long *num); | ||
50 | 51 | ||
51 | #endif /* _ROCKLIB_H_ */ | 52 | #endif /* _ROCKLIB_H_ */ |
52 | 53 | ||