cfenollosa_os-tutorial/21-shell/libc/string.h

#ifndef STRINGS_H
#define STRINGS_H

void int_to_ascii(int n, char str[]);
void reverse(char s[]);
int strlen(char s[]);
void backspace(char s[]);
void append(char s[], char n);
int strcmp(char s1[], char s2[]);
char chrupper(char chr);

#endif