cgrammar 0.9.1

A comprehensive C language grammar parser library written in Rust, implementing the C23 standard (ISO/IEC 9899:2023).
Documentation 
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//en.cppreference.com/w/c/string/byte/strlen.html
#define __STDC_WANT_LIB_EXT1__ 1
#include <string.h>
#include <stdio.h>
 
int main(void)
{
    const char str[] = "How many characters does this string contain?";
 
    printf("without null character: %zu\n", strlen(str));
    printf("with null character:    %zu\n", sizeof str);
 
#ifdef __STDC_LIB_EXT1__
    printf("without null character: %zu\n", strnlen_s(str, sizeof str));
#endif
}