DragonOS/user/libs/libc/stdio.h

#pragma once

#include <libc/sys/types.h>
#include <stdarg.h>

// 字体颜色的宏定义
#define COLOR_WHITE 0x00ffffff  //白
#define COLOR_BLACK 0x00000000  //黑
#define COLOR_RED 0x00ff0000    //红
#define COLOR_ORANGE 0x00ff8000 //橙
#define COLOR_YELLOW 0x00ffff00 //黄
#define COLOR_GREEN 0x0000ff00  //绿
#define COLOR_BLUE 0x000000ff   //蓝
#define COLOR_INDIGO 0x0000ffff //靛
#define COLOR_PURPLE 0x008000ff //紫

#define SEEK_SET 0 /* Seek relative to start-of-file */
#define SEEK_CUR 1 /* Seek relative to current position */
#define SEEK_END 2 /* Seek relative to end-of-file */

#define SEEK_MAX 3

/**
 * @brief 往屏幕上输出字符串
 *
 * @param str 字符串指针
 * @param front_color 前景色
 * @param bg_color 背景色
 * @return int64_t
 */
int64_t put_string(char *str, uint64_t front_color, uint64_t bg_color);

int printf(const char *fmt, ...);
int sprintf(char *buf, const char *fmt, ...);
int vsprintf(char *buf, const char *fmt, va_list args);