stdio.h

#pragma once

#include <cstdarg>

/**
 * @file
 * @brief Functions similar to standard library.
 *
 * Documantations omitted, I know you have the POSIX manual.
 *
 * `stdin` and `stdout` are set to the console, `stderr` is not supported.
 */

/// @name Color control escape strings
//@{
#define CRED "\x1b[31m" ///< red
#define CGRN "\x1b[32m" ///< green
#define CYLW "\x1b[33m" ///< yellow
#define CBLU "\x1b[34m" ///< blue
#define CMAG "\x1b[35m" ///< magenta
#define CCYN "\x1b[36m" ///< cyan
#define CEND "\x1b[0m"  ///< back to default color
//@}

struct FILE {
    void (*putc)(int ch);
    int (*getc)();
};

extern FILE * const stdin;
extern FILE * const stdout;
extern FILE * const stderr;

static inline int getchar()
{
    return stdin->getc();
}

// The standard one returns int, but we can't do anything if it fails.
static inline void putchar(int c)
{
    stdout->putc(c);
}

// Same to above.
static inline void puts(const char *s)
{
    for (; *s; ++s)
        putchar(*s);
    putchar('\n');
}

// We need this because puts always write trainling new line
static inline void fputs(const char *s, FILE *stream)
{
    for (; *s; ++s)
        stream->putc(*s);
}

int printf(const char *format, ...);
int fprintf(FILE *stream, const char *format, ...);
int vfprintf(FILE *stream, const char *format, va_list ap);

// Not a stdio function in fact
char * readline(const char *prompt);