diff options
| author | Jean Boussier <[email protected]> | 2021-10-18 16:23:54 +0200 |
|---|---|---|
| committer | Jean Boussier <[email protected]> | 2021-10-26 22:27:30 +0200 |
| commit | e5319dc9856298f38aa9cdc6ed55e39ad0e8e070 () | |
| tree | 7c1d685ae65979ce2ae3bee4ccce54507d3f49f8 /pack.c | |
| parent | 717ab0bb2ee63dfe76076e0c9f91fbac3a0de4fd (diff) | |
pack.c: add an offset argument to unpack and unpack1
[Feature #18254] This is useful to avoid repeteadly copying strings when parsing binary formats
| -rw-r--r-- | pack.c | 19 |
1 files changed, 13 insertions, 6 deletions
@@ -944,7 +944,7 @@ hex2num(char c) #define UNPACK_1 2 static VALUE -pack_unpack_internal(VALUE str, VALUE fmt, int mode) { #define hexdigits ruby_hexdigits char *s, *send; @@ -973,8 +973,15 @@ pack_unpack_internal(VALUE str, VALUE fmt, int mode) StringValue(str); StringValue(fmt); s = RSTRING_PTR(str); - send = s + RSTRING_LEN(str); p = RSTRING_PTR(fmt); pend = p + RSTRING_LEN(fmt); @@ -1614,16 +1621,16 @@ pack_unpack_internal(VALUE str, VALUE fmt, int mode) } static VALUE -pack_unpack(rb_execution_context_t *ec, VALUE str, VALUE fmt) { int mode = rb_block_given_p() ? UNPACK_BLOCK : UNPACK_ARRAY; - return pack_unpack_internal(str, fmt, mode); } static VALUE -pack_unpack1(rb_execution_context_t *ec, VALUE str, VALUE fmt) { - return pack_unpack_internal(str, fmt, UNPACK_1); } int |