Compile-time wildcard pattern matching
I am not most experienced with C++ (java's my best language) but as far as I know, method names are supposed to be camelCase. MatchPattern_Rec should be matchPatternRec. 

Also, why are you returning a 1 or a 0? Shouldn't you be returning a bool? (Again, correct me if I'm wrong)

The chain of ternary operators is very unreadable and messy, which causes easy bugs. You are also using ternary in places you can just use || and &amp;&amp;. Use if and switch statements to simplify:

constexpr bool matchPatternRec(const char* pattern, const char* text) {
    if (*pattern == '\0' || *text == '\0') {
        return *pattern == *text;
    }
    switch (*pattern) {
    case '?':
        return matchPatternRec(pattern + 1, text + 1);
    case '*':
        return matchPatternRec(pattern + 1, text) ||
                matchPatternRec(pattern, text + 1);
    case '+':
        return matchPatternRec(pattern + 1, text + 1) ||
                matchPatternRec(pattern, text + 1);
    default:
        return *pattern == *text &amp;&amp; matchPatternRec(pattern + 1, text + 1);
    }
}

constexpr int matchPattern(const char* pattern, const char* text) {
    if (*pattern == '\0') {
        return false;
    }
    return (*pattern == '*' &amp;&amp; *(pattern+1) == '\0' &amp;&amp; *text == '\0') ||
            matchPatternRec(pattern, text);
}