- Foundation-
NSNumber

NSString* stringOfNumber(NSNumber* number)
{
    static NSString* _b = @"BOOL";
    static NSString* _c = @"char";
    static NSString* _s = @"short";
    static NSString* _i = @"int";
    static NSString* _l = @"long";
    static NSString* _ll = @"long long";
    static NSString* _f = @"float";
    static NSString* _d = @"double";
    static NSString* _uc = @"unsigned char";
    static NSString* _us = @"unsigned short";
    static NSString* _ui = @"unsigned int";
    static NSString* _ul = @"unsigned long";
    static NSString* _ull = @"unsigned long long";

    const char* type;

    // Get Objective-C type
    type = [number objCType];
    if (strcmp(type, @encode(BOOL)) == 0) return _b;
    if (strcmp(type, @encode(char)) == 0) return _c;
    if (strcmp(type, @encode(short)) == 0) return _s;
    if (strcmp(type, @encode(int)) == 0) return _i;
    if (strcmp(type, @encode(long)) == 0) return _l;
    if (strcmp(type, @encode(long long)) == 0) return _ll;
    if (strcmp(type, @encode(float)) == 0) return _f;
    if (strcmp(type, @encode(double)) == 0) return _d;
    if (strcmp(type, @encode(unsigned char)) == 0) return _uc;
    if (strcmp(type, @encode(unsigned short)) == 0) return _us;
    if (strcmp(type, @encode(unsigned int)) == 0) return _ui;
    if (strcmp(type, @encode(unsigned long)) == 0) return _ul;
    if (strcmp(type, @encode(unsigned long long)) == 0) return _ull;
}