string - How do I convert hex numbers to a character in c++? -

i'm trying convert hex number character in c++. looked can't find answer works me.

here code:

char mod_tostring(int state, int index, int size) {     int stringaddress = lua_tolstring(state, index, 0);     const char* const base = (const char* const)stringaddress;     return base[0]; }; 

base[0] return hex number like: 0000005b

if go here http://string-functions.com/hex-string.aspx , put 0000005b input outputs character "[". how output [?

to print number character, can either assign char variable or cast char type:

unsigned int value = 0x5b; char c = static_cast<char>(value); cout << "the character of 0x5b '" << c << "` , '" << static_cast<char>(value) << "'\n"; 

you use snprintf:

char text_buffer[128]; unsigned int value = 0x5b; snprintf(&text_buffer[0], sizeof(text_buffer),          "%c\n", value); puts(text_buffer); 

example program:

#include <iostream> #include <cstdlib>  int main() {     unsigned int value = 0x5b;     char c = static_cast<char>(value);     std::cout << "the character of 0x5b '" << c << "` , '" << static_cast<char>(value) << "'\n";      std::cout << "\n"               << "paused.  press enter continue.\n";     std::cin.ignore(1000000, '\n');     return exit_success; } 

output:

$ ./main.exe character of 0x5b '[` , '['  paused.  press enter continue.