main.cpp

#include <stdio.h>

extern "C" int IsBetweenAandB(char ch, char a, char b);
extern "C" void RemCharCodeFromAToB(char * str, char a, char b);
extern "C" void DebugStart();
extern "C" void DebugEnd();

int main(void)
{
    printf("::started main...\n");

    char * str = "xyz abcde xyz abcde xyz";
    RemCharCodeFromAToB(str, 'a', 'e');

    printf("%s", str);

    printf("\n... ended main:~\n");

    return 0;
}