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#include "config.h"
#include "alstring.h"
#include <cctype>
#include <string>
namespace {
int to_upper(const char ch)
{
using char8_traits = std::char_traits<char>;
return std::toupper(char8_traits::to_int_type(ch));
}
} // namespace
namespace al {
int strcasecmp(const char *str0, const char *str1) noexcept
{
do {
const int diff{to_upper(*str0) - to_upper(*str1)};
if(diff < 0) return -1;
if(diff > 0) return 1;
} while(*(str0++) && *(str1++));
return 0;
}
int strncasecmp(const char *str0, const char *str1, std::size_t len) noexcept
{
if(len > 0)
{
do {
const int diff{to_upper(*str0) - to_upper(*str1)};
if(diff < 0) return -1;
if(diff > 0) return 1;
} while(--len && *(str0++) && *(str1++));
}
return 0;
}
} // namespace al
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