By the way, are you asking this because of some LLDB code? If so, I would
rather standardize on std::regex. Consistent rules across all platforms,
and supported everywhere AFAIK.
On Tue Jan 20 2015 at 3:41:20 PM Greg Clayton <gclay...@apple.com> wrote:
> The code below fails to match the string "a" to the regex "^a$" on MacOSX
> if both "REG_EXTENDED | REG_ENHANCED" are specified, but it will pass if
> just REG_ENHANCED is used.
>
> Can someone run this on linux to see if the code below fails as well on
> linux? I want to make sure it isn't just an old version of regex we have in
> our libc...
>
>
>
> #include <stdio.h>
> #include <stdint.h>
> #include <regex.h>
>
> #define DEFAULT_REG_FLAGS (REG_EXTENDED | REG_ENHANCED)
>
> int main (int argc, char const *argv[], char const *envp[])
> {
> regex_t re;
> const char *regex_input = "a";
> int err = regcomp (&re, "^a$", DEFAULT_REG_FLAGS);
> if (err == 0)
> {
> err = regexec (&re, regex_input, 0, NULL, DEFAULT_REG_FLAGS);
> if (err == 0)
> {
> puts("matched");
> }
> else
> {
> char error_str[2048];
> const size_t actual_error_str_size = regerror(err, &re,
> error_str, sizeof(error_str));
> puts(error_str);
> }
> }
> return 0;
> }
>
>
>
>
>
>
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