юникодинг, C (clang)

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//clang 3.8.0

#include <stdio.h>      /* printf */
#include <stdlib.h>     /* strtoull */

int main(void) {
    
    char character[256] = "Ộ";
    printf("\n");
    printf("character: %s", character);
    
    char src[256] = "blah-blah-\\u1ED8-blah-blah-blah"; //string with escaped character inside. 1ED8 hex = 7896 decimal
    char unicode_code[256]; //charcode - go here, temp variable
    unsigned long int unicode_code_int; //char code as integer
    char *ptr; //just for strtoul
    
    sprintf(unicode_code, "%.4s", &src[12]); //4 symbol code from 12 - copy to temp variable
    printf("\n");
    printf("unicode_code: %s", unicode_code); //now here charcode as hex string
    
    unicode_code_int = strtoul(unicode_code, &ptr, 16); //code to integer
    //and... oww...
    
    printf("\n");
    printf("String to printf unicode character: \\u1ed8"); //escaped string
    printf("\n");
    printf("Unicode character, using this unescaped string: \u1ed8"); //unincode character
    
    printf("\n");
    
    //printf("\u%d", 7896); //error
    //printf("\u%x", 7896); //error
    //printf("%u", 7896); //decimal string
    //printf(u"%d", 7896); //unceclared identifier
    //printf("%" u "%d", 7896); //unceclared identifier
    
}

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Compilation time: 0.35 sec, absolute running time: 0.12 sec, cpu time: 0.04 sec, memory peak: 3 Mb, absolute service time: 0,48 sec