Output some PCRE2 values for debugging PCRE2 with MinGW

pcre2_mingw.c

#include <stdio.h>
#define PCRE2_CODE_UNIT_WIDTH 8
#include <pcre2.h>

static void config_uint(const char *descr, uint32_t flag) {
  uint32_t value;
  uint32_t len = pcre2_config_8(flag, NULL);
  int rc = pcre2_config_8(flag, &value);
  if (rc >= 0) {
    printf("%s (len=%d rc=%d) 0x%08x: 0x%08x\n", descr, len, rc, flag, value);
  } else {
    printf("FAILED: %s len=%d rc=%d\n", descr, len, rc);
  }
}

static void config_str(const char *descr, uint32_t flag) {
  char value[100];
  uint32_t len = pcre2_config_8(flag, NULL);
  int rc = pcre2_config_8(flag, &value);
  if (rc >= 0) {
    printf("%s (len=%d rc=%d) 0x%08x: '%s'\n", descr, len, rc, flag, value);
  } else {
    printf("FAILED: %s len=%d rc=%d\n", descr, len, rc);
  }
}

int main(void) {
  config_str("VERSION",         PCRE2_CONFIG_VERSION);
  config_str("JITTARGET",       PCRE2_CONFIG_JITTARGET);
  config_str("UNICODE_VERSION", PCRE2_CONFIG_UNICODE_VERSION);
  config_uint("JIT",            PCRE2_CONFIG_JIT);
  return 0;
}