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LibC+AK: Implement all sorts of wprintf variants

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This commit is contained in:
Ali Mohammad Pur 2021-12-19 22:58:28 +03:30 • committed by Ali Mohammad Pur
parent db7a6d6e74
commit f0709c7a24
6 changed files with 93 additions and 37 deletions
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56
Userland/Libraries/LibC/wstdio.cpp
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@ -6,6 +6,7 @@
#include <AK/Assertions.h>
#include <AK/BitCast.h>
#include <AK/PrintfImplementation.h>
#include <AK/StringBuilder.h>
#include <AK/Types.h>
#include <bits/stdio_file_implementation.h>
@ -118,4 +119,59 @@ int fputws(wchar_t const* __restrict ws, FILE* __restrict stream)
}
return size;
}
int wprintf(wchar_t const* __restrict format, ...)
{
va_list ap;
va_start(ap, format);
auto rc = vfwprintf(stdout, format, ap);
va_end(ap);
return rc;
}
int fwprintf(FILE* __restrict stream, wchar_t const* __restrict format, ...)
{
va_list ap;
va_start(ap, format);
auto rc = vfwprintf(stream, format, ap);
va_end(ap);
return rc;
}
int swprintf(wchar_t* __restrict wcs, size_t max_length, wchar_t const* __restrict format, ...)
{
va_list ap;
va_start(ap, format);
auto rc = vswprintf(wcs, max_length, format, ap);
va_end(ap);
return rc;
}
int vwprintf(wchar_t const* __restrict format, va_list args)
{
return vfwprintf(stdout, format, args);
}
int vfwprintf(FILE* __restrict stream, wchar_t const* __restrict format, va_list args)
{
auto const* fmt = bit_cast<wchar_t const*>(format);
return printf_internal([stream](wchar_t*&, wchar_t wc) {
putwc(wc, stream);
},
nullptr, fmt, args);
}
int vswprintf(wchar_t* __restrict wcs, size_t max_length, wchar_t const* __restrict format, va_list args)
{
auto const* fmt = bit_cast<wchar_t const*>(format);
size_t length_so_far = 0;
printf_internal([max_length, &length_so_far](wchar_t*& buffer, wchar_t wc) {
if (length_so_far > max_length)
return;
*buffer++ = wc;
++length_so_far;
},
wcs, fmt, args);
return static_cast<int>(length_so_far);
}
}