diff options
Diffstat (limited to 'cop.h')
| -rw-r--r-- | cop.h | 16 |
1 files changed, 11 insertions, 5 deletions
@@ -534,7 +534,10 @@ string pv created with C<rcpv_new()>. Returns the refcount for a pv created with C<rcpv_new()>. =for apidoc Am|RCPV *|RCPV_LEN|char *pv -Returns the length of a pv created with C<rcpv_new()>. +Returns the length of a pv created with C<rcpv_new()>. +Note that this reflects the length of the string from the callers +point of view, it does not include the mandatory null which is +always injected at the end of the string by rcpv_new(). =cut */ @@ -542,16 +545,19 @@ Returns the length of a pv created with C<rcpv_new()>. struct rcpv { STRLEN refcount; /* UV would mean a 64 refcnt on 32 bit builds with -Duse64bitint */ - STRLEN len; + STRLEN len; /* length of string including mandatory + null byte at end */ char pv[1]; }; typedef struct rcpv RCPV; -#define RCPVf_USE_STRLEN 1 -#define RCPVf_NO_COPY 2 +#define RCPVf_USE_STRLEN (1 << 0) +#define RCPVf_NO_COPY (1 << 1) +#define RCPVf_ALLOW_EMPTY (1 << 2) + #define RCPVx(pv_arg) ((RCPV *)((pv_arg) - STRUCT_OFFSET(struct rcpv, pv))) #define RCPV_REFCOUNT(pv) (RCPVx(pv)->refcount) -#define RCPV_LEN(pv) (RCPVx(pv)->len) +#define RCPV_LEN(pv) (RCPVx(pv)->len-1) /* len always includes space for a null */ #ifdef USE_ITHREADS |