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follow-up: use only the memory that's required

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This commit is contained in:
nhmall
2022-06-30 13:10:56 -04:00
parent 0fd999a6b5
commit 4a0654c708
1 changed files with 4 additions and 3 deletions
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7
sys/share/cppregex.cpp
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@@ -12,7 +12,7 @@ extern "C" {
#include <hack.h>
extern const char regex_id[] = "cppregex";
static char cppregex_static_buffer[BUFSZ];
static char *cppregex_static_buffer = (char *) 0;
struct nhregex {
std::unique_ptr<std::regex> re;
@@ -41,8 +41,9 @@ extern "C" {
const char *regex_error_desc(struct nhregex *re) {
if (re->err) {
Snprintf(cppregex_static_buffer, sizeof cppregex_static_buffer,
"%s", re->err->what());
if (cppregex_static_buffer != 0)
free(cppregex_static_buffer);
cppregex_static_buffer = dupstr(re->err->what());
return cppregex_static_buffer;
} else
return nullptr;