[lldb-dev] Can someone compile and run this on Linux?

Zachary Turner zturner at google.com
Tue Jan 20 15:54:12 PST 2015


s/Linus/Linux/

On Tue Jan 20 2015 at 3:50:10 PM Zachary Turner <zturner at google.com> wrote:

> Linus doesn't appear to have REG_ENHANCED.
>
> On Tue, Jan 20, 2015 at 3:37 PM, Greg Clayton <gclayton at 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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>>
>
>
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