Console Class Reference

Public Member Functions
void	vprintf (char const *format, va_list args)

Protected Attributes
bool	initialized

Constructor & Destructor Documentation

Console()

Console::Console ( )

inline

: initialized (false) {}

Member Function Documentation

vprintf()

void Console::vprintf	(	char const *	format,
		va_list	args )

{
    if (EXPECT_FALSE (!initialized))
        return;
 
    while (*format) {
 
        if (EXPECT_TRUE (*format != '%')) {
            putc (*format++);
            continue;
        }
 
        unsigned flags = 0, width = 0, precs = 0, len = 0, mode = MODE_FLAGS;
 
        for (uint64 u;;) {
 
            switch (*++format) {
 
                case '0'...'9':
                    switch (mode) {
                        case MODE_FLAGS:
                            if (*format == '0') {
                                flags |= FLAG_ZERO_PAD;
                                break;
                            }
                            mode = MODE_WIDTH;
                            FALLTHROUGH;
                        case MODE_WIDTH: width = width * 10 + *format - '0'; break;
                        case MODE_PRECS: precs = precs * 10 + *format - '0'; break;
                    }
                    continue;
 
                case '.':
                    mode = MODE_PRECS;
                    continue;
 
                case '#':
                    if (mode == MODE_FLAGS)
                        flags |= FLAG_ALT_FORM;
                    continue;
 
                case 'l':
                    len++;
                    continue;
 
                case 'c':
                    putc (va_arg (args, int));
                    break;
 
                case 's':
                    print_str (va_arg (args, char *), width, precs ? precs : ~0u);
                    break;
 
                case 'd':
                    switch (len) {
                        case 0:  u = va_arg (args, int);        break;
                        case 1:  u = va_arg (args, long);       break;
                        default: u = va_arg (args, long long);  break;
                    }
                    print_number (u, 10, width, flags | FLAG_SIGNED);
                    break;
 
                case 'u':
                case 'x':
                    switch (len) {
                        case 0:  u = va_arg (args, unsigned int);        break;
                        case 1:  u = va_arg (args, unsigned long);       break;
                        default: u = va_arg (args, unsigned long long);  break;
                    }
                    print_number (u, *format == 'x' ? 16 : 10, width, flags);
                    break;
 
                case 'p':
                    print_number (reinterpret_cast<mword>(va_arg (args, void *)), 16, width, FLAG_ALT_FORM);
                    break;
 
                case 0:
                    format--;
                    FALLTHROUGH;
 
                default:
                    putc (*format);
                    break;
            }
 
            format++;
 
            break;
        }
    }
}

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The documentation for this class was generated from the following files:

• include/console.h
• src/console.cc