mirror of
https://github.com/louisrubet/rpn
synced 2024-12-28 09:58:52 +01:00
#47: removed binary type and functions
This commit is contained in:
Louis Rubet
parent
eedb29a929
commit
6092d15e77
6 changed files with 56 additions and 323 deletions
92
src/parse.h
92
src/parse.h
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@ -327,8 +327,7 @@ static bool get_program(const string& entry, program& prog, string& remaining_en
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return ret;
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}
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// care: not threadsafe
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static bool get_float(const string& entry, program& prog, string& remaining_entry)
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static bool get_number(const string& entry, program& prog, string& remaining_entry)
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{
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char* endptr;
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bool ret = false;
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@ -344,6 +343,15 @@ static bool get_float(const string& entry, program& prog, string& remaining_entr
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int mpfr_ret = mpfr_strtofr(num->_value.mpfr, entry.c_str(), &endptr, 0, MPFR_DEF_RND);
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if (endptr != NULL && endptr != entry.c_str())
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{
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// determine representation
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string beg = entry.substr(0, 2);
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if (beg == "0x" || beg == "0X")
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num->_representation = number::hex;
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else if (beg == "0b" || beg == "0B")
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num->_representation = number::bin;
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else
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num->_representation = number::dec;
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ret = true;
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// remaining string if any
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@ -357,91 +365,13 @@ static bool get_float(const string& entry, program& prog, string& remaining_entr
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return ret;
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}
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// care: not threadsafe
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static bool get_binary(const string& entry, program& prog, string& remaining_entry)
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{
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integer_t val;
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bool ret = false;
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if ((entry.size() >= 2) && (entry[0] == '#'))
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{
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stringstream token;
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char type = entry[entry.size() - 1];
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bool syntax;
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switch(type)
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{
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case 'd':
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token<<std::dec<<entry.substr(1);
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syntax = true;
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break;
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case 'h':
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token<<std::hex<<entry.substr(1);
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syntax = true;
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break;
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case 'o':
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token<<std::oct<<entry.substr(1);
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syntax = true;
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break;
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default:
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syntax = false;
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break;
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}
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token>>val;
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if(syntax && !token.fail())
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{
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binary* new_binary = (binary*)prog.allocate_back((unsigned int)sizeof(binary), cmd_binary);
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new_binary->set(val);
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ret = true;
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}
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}
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return ret;
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}
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static bool get_binary_bin(const string& entry, program& prog, string& remaining_entry)
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{
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integer_t val;
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int len = entry.size();
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bool ret = false;
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if ((len > 2) && (entry[0] == '#') && (entry[len - 1] == 'b'))
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{
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integer_t val(0);
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integer_t exponent = (1 << (len-3));
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for(int i=0; i<(len-2); i++)
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{
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if (entry.at(i+1)=='1')
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{
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val+=exponent;
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}
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exponent>>=1;
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}
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binary* new_binary = (binary*)prog.allocate_back((unsigned int)sizeof(binary), cmd_binary);
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new_binary->set(val);
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ret = true;
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}
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return ret;
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}
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static bool _obj_from_string(const string& entry, program& prog, string& remaining_entry)
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{
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bool ret = false;
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remaining_entry.erase();
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if (get_float(entry, prog, remaining_entry))
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{
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ret = true;
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}
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else if (get_binary(entry, prog, remaining_entry))
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{
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ret = true;
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}
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else if (get_binary_bin(entry, prog, remaining_entry))
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if (get_number(entry, prog, remaining_entry))
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{
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ret = true;
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}
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@ -1,39 +0,0 @@
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void dec()
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{
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binary::s_mode = binary::dec;
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}
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void hex()
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{
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binary::s_mode = binary::hex;
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}
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void oct()
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{
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binary::s_mode = binary::oct;
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}
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void bin()
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{
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binary::s_mode = binary::bin;
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}
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void rtob()
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{
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MIN_ARGUMENTS(1);
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ARG_MUST_BE_OF_TYPE(0, cmd_number);
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number* left = (number*)_stack->pop_back();
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binary* bin = (binary*)_stack->allocate_back(sizeof(binary), cmd_binary);
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bin->set(mpfr_get_sj(left->_value.mpfr, s_mpfr_rnd));
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}
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void btor()
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{
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MIN_ARGUMENTS(1);
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ARG_MUST_BE_OF_TYPE(0, cmd_binary);
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integer_t bin = getb();
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number* left = (number*)_stack->allocate_back(number::calc_size(), cmd_number);
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left->set(bin);
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}
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@ -11,13 +11,10 @@ program::keyword_t program::_keywords[] =
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{ cmd_keyword, "exit", &program::good_bye, "" },
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{ cmd_keyword, "test", &program::test, "" }, //not seen by user
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{ cmd_keyword, "verbose", &program::verbose, "set verbosity, from 0 (not verbose) to > 0" },
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{ cmd_keyword, "std", &program::std, "standard floating numbers representation. ex: [25] std" },
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{ cmd_keyword, "fix", &program::fix, "fixed point representation. ex: 6 fix" },
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{ cmd_keyword, "sci", &program::sci, "scientific floating point representation. ex: 20 sci" },
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{ cmd_keyword, "version", &program::rpn_version, "show rpn version" },
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{ cmd_keyword, "uname", &program::rpn_uname, "show rpn complete identification string" },
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{ cmd_keyword, "type", &program::type, "show first stack entry type" },
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{ cmd_keyword, "default", &program::rpn_default, "setting precision, float representation, float precision, binary mode and verbosity to default" },
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{ cmd_keyword, "default", &program::rpn_default, "setting precision, float representation, float precision and verbosity to default" },
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//REAL
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{ cmd_undef, "", NULL, "\nREAL"},
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@ -34,14 +31,14 @@ program::keyword_t program::_keywords[] =
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{ cmd_keyword, "sq", &program::square, "unarity operator square" },
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{ cmd_keyword, "mod", &program::modulo, "binary operator modulo" },
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//BINARY
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{ cmd_undef, "", NULL, "\nBINARY"},
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{ cmd_keyword, "dec", &program::dec, "decimal representation for binaries" },
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{ cmd_keyword, "hex", &program::hex, "hexadecimal representation for binaries" },
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{ cmd_keyword, "oct", &program::oct, "octal representation for binaries" },
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{ cmd_keyword, "bin", &program::bin, "binary representation for binaries" },
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{ cmd_keyword, "r->b", &program::rtob, "real to binary" },
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{ cmd_keyword, "b->r", &program::btor, "binary to real" },
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//REAL representation
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{ cmd_undef, "", NULL, "\nREAL REPRESENTATION"},
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//{ cmd_keyword, "dec", &program::dec, "decimal representation" },
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//{ cmd_keyword, "hex", &program::hex, "hexadecimal representation" },
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//{ cmd_keyword, "bin", &program::bin, "binary representation" },
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{ cmd_keyword, "std", &program::std, "standard floating numbers representation. ex: [25] std" },
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{ cmd_keyword, "fix", &program::fix, "fixed point representation. ex: 6 fix" },
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{ cmd_keyword, "sci", &program::sci, "scientific floating point representation. ex: 20 sci" },
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//TEST
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{ cmd_undef, "", NULL, "\nTEST"},
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@ -62,16 +62,6 @@ void help()
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}
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cout<<endl<<"Current float precision is "<<number::s_current_precision<<endl;
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cout<<"Current binary mode is ";
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switch(binary::s_mode)
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{
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case binary::dec: cout << "'dec'"; break;
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case binary::hex: cout << "'hex'"; break;
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case binary::oct: cout << "'oct'"; break;
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case binary::bin: cout << "'bin'"; break;
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default: cout << "unknown"; break;
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}
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cout<<endl<<endl;
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}
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120
src/rpn-real.h
120
src/rpn-real.h
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@ -1,126 +1,54 @@
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void plus()
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{
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MIN_ARGUMENTS(2);
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ARG_MUST_BE_OF_TYPE(0, cmd_number);
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ARG_MUST_BE_OF_TYPE(1, cmd_number);
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// float
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if (IS_ARG_TYPE(0, cmd_number))
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{
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ARG_MUST_BE_OF_TYPE(1, cmd_number);
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number* right = (number*)_stack->pop_back();
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number* left = (number*)_stack->back();
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CHECK_MPFR(mpfr_add(left->_value.mpfr, left->_value.mpfr, right->_value.mpfr, s_mpfr_rnd));
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}
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// binary
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else if (IS_ARG_TYPE(0, cmd_binary))
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{
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ARG_MUST_BE_OF_TYPE(1, cmd_binary);
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binary* right = (binary*)_stack->pop_back();
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binary* left = (binary*)_stack->back();
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left->_value += right->_value;
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}
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else
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ERR_CONTEXT(ret_bad_operand_type);
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number* right = (number*)_stack->pop_back();
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number* left = (number*)_stack->back();
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CHECK_MPFR(mpfr_add(left->_value.mpfr, left->_value.mpfr, right->_value.mpfr, s_mpfr_rnd));
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}
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void minus()
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{
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MIN_ARGUMENTS(2);
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ARG_MUST_BE_OF_TYPE(0, cmd_number);
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ARG_MUST_BE_OF_TYPE(1, cmd_number);
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// float
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if (IS_ARG_TYPE(0, cmd_number))
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{
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ARG_MUST_BE_OF_TYPE(1, cmd_number);
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number* right = (number*)_stack->pop_back();
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number* left = (number*)_stack->back();
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CHECK_MPFR(mpfr_sub(left->_value.mpfr, left->_value.mpfr, right->_value.mpfr, s_mpfr_rnd));
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}
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// binary
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else if (IS_ARG_TYPE(0, cmd_binary))
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{
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ARG_MUST_BE_OF_TYPE(1, cmd_binary);
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binary* right = (binary*)_stack->pop_back();
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binary* left = (binary*)_stack->back();
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left->_value -= right->_value;
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}
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else
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ERR_CONTEXT(ret_bad_operand_type);
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number* right = (number*)_stack->pop_back();
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number* left = (number*)_stack->back();
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CHECK_MPFR(mpfr_sub(left->_value.mpfr, left->_value.mpfr, right->_value.mpfr, s_mpfr_rnd));
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}
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void mul()
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{
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// float
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if (IS_ARG_TYPE(0, cmd_number))
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{
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ARG_MUST_BE_OF_TYPE(1, cmd_number);
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MIN_ARGUMENTS(2);
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ARG_MUST_BE_OF_TYPE(0, cmd_number);
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ARG_MUST_BE_OF_TYPE(1, cmd_number);
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number* right = (number*)_stack->pop_back();
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number* left = (number*)_stack->back();
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CHECK_MPFR(mpfr_mul(left->_value.mpfr, left->_value.mpfr, right->_value.mpfr, s_mpfr_rnd));
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}
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// binary
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else if (IS_ARG_TYPE(0, cmd_binary))
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{
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ARG_MUST_BE_OF_TYPE(1, cmd_binary);
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binary* right = (binary*)_stack->pop_back();
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binary* left = (binary*)_stack->back();
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left->_value *= right->_value;
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}
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else
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ERR_CONTEXT(ret_bad_operand_type);
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number* right = (number*)_stack->pop_back();
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number* left = (number*)_stack->back();
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CHECK_MPFR(mpfr_mul(left->_value.mpfr, left->_value.mpfr, right->_value.mpfr, s_mpfr_rnd));
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}
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void div()
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{
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MIN_ARGUMENTS(2);
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ARG_MUST_BE_OF_TYPE(0, cmd_number);
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ARG_MUST_BE_OF_TYPE(1, cmd_number);
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// float
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if (IS_ARG_TYPE(0, cmd_number))
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{
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ARG_MUST_BE_OF_TYPE(1, cmd_number);
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number* right = (number*)_stack->pop_back();
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number* left = (number*)_stack->back();
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CHECK_MPFR(mpfr_div(left->_value.mpfr, left->_value.mpfr, right->_value.mpfr, s_mpfr_rnd));
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}
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// binary
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else if (IS_ARG_TYPE(0, cmd_binary))
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{
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ARG_MUST_BE_OF_TYPE(1, cmd_binary);
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if (((binary*)_stack->get_obj(0))->_value == 0)
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{
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ERR_CONTEXT(ret_div_by_zero);
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}
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else
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{
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binary* right = (binary*)_stack->pop_back();
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binary* left = (binary*)_stack->back();
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left->_value /= right->_value;
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}
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}
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else
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ERR_CONTEXT(ret_bad_operand_type);
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number* right = (number*)_stack->pop_back();
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number* left = (number*)_stack->back();
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CHECK_MPFR(mpfr_div(left->_value.mpfr, left->_value.mpfr, right->_value.mpfr, s_mpfr_rnd));
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}
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void neg()
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{
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MIN_ARGUMENTS(1);
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ARG_MUST_BE_OF_TYPE(0, cmd_number);
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// float
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if (IS_ARG_TYPE(0, cmd_number))
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{
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number* left = (number*)_stack->back();
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CHECK_MPFR(mpfr_neg(left->_value.mpfr, left->_value.mpfr, s_mpfr_rnd));
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}
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// binary
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else if (IS_ARG_TYPE(0, cmd_binary))
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((binary*)_stack->back())->_value *= -1;
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else
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ERR_CONTEXT(ret_bad_operand_type);
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number* left = (number*)_stack->back();
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CHECK_MPFR(mpfr_neg(left->_value.mpfr, left->_value.mpfr, s_mpfr_rnd));
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}
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void inv()
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97
src/rpn.cpp
97
src/rpn.cpp
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@ -48,6 +48,8 @@ using namespace std;
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#define MPFR_128BITS_PREC 128
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#define MPFR_128BITS_STORING_LENGTH 16
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static string s_mpfr_printf_format_hex = "0x";
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static string s_mpfr_printf_format_bin = "0b";
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static string s_mpfr_printf_format_beg = "%.";
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static string s_mpfr_printf_format_std = "Rg";
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static string s_mpfr_printf_format_fix = "Rf";
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@ -88,7 +90,6 @@ const char* ret_value_string[ret_max] = {
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typedef enum {
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cmd_undef,
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cmd_number,/* floating value to put in stack */
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cmd_binary,/* binary (integer) value to put in stack */
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cmd_string,/* string value to put in stack */
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cmd_symbol,/* symbol value to put in stack */
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cmd_program,/* program */
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@ -98,11 +99,9 @@ typedef enum {
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} cmd_type_t;
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const char* cmd_type_string[cmd_max] = {
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"undef", "number", "binary", "string", "symbol", "program", "keyword", "keyword"
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"undef", "number", "string", "symbol", "program", "keyword", "keyword"
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};
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typedef long long integer_t;
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// MPFR object
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struct floating_t
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{
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@ -129,11 +128,6 @@ struct floating_t
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mpfr_set_ui(mpfr, val, s_mpfr_rnd);
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}
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floating_t& operator=(const integer_t val)
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{
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mpfr_set_sj(mpfr, val, s_mpfr_rnd);
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}
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operator int()
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{
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return (int)mpfr_get_si(mpfr, s_mpfr_rnd);
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@ -153,13 +147,8 @@ struct floating_t
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class program;
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class object;
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class branch;
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typedef void (program::*program_fn_t)(void);
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typedef union
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{
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program_fn_t _fn;
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} operand;
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typedef int (program::*branch_fn_t)(branch&);
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//
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@ -182,6 +171,7 @@ struct number : public object
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void init(void* significand)
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{
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_type = cmd_number;
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_representation = dec;
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_value.init(significand);
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}
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@ -210,12 +200,6 @@ struct number : public object
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_value = value;
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}
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void set(integer_t value)
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{
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_type = cmd_number;
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_value = value;
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}
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static unsigned int calc_size()
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{
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return (unsigned int)(sizeof(number)+MPFR_128BITS_STORING_LENGTH);
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@ -237,6 +221,12 @@ struct number : public object
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} mode_enum;
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static mode_enum s_default_mode;
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static mode_enum s_mode;
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enum {
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dec,
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hex,
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bin
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} _representation;
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||||
|
||||
// precision
|
||||
static int s_default_precision;
|
||||
|
|
@ -248,30 +238,6 @@ number::mode_enum number::s_mode = number::s_default_mode;
|
|||
int number::s_default_precision = DEFAULT_PRECISION;
|
||||
int number::s_current_precision = number::s_default_precision;
|
||||
|
||||
struct binary : public object
|
||||
{
|
||||
integer_t _value;
|
||||
|
||||
//
|
||||
void set(integer_t value)
|
||||
{
|
||||
_type = cmd_binary;
|
||||
_value = value;
|
||||
}
|
||||
|
||||
// representation mode
|
||||
typedef enum {
|
||||
dec,
|
||||
hex,
|
||||
oct,
|
||||
bin,
|
||||
} binary_enum;
|
||||
static binary_enum s_default_mode;
|
||||
static binary_enum s_mode;
|
||||
};
|
||||
binary::binary_enum binary::s_default_mode = binary::dec;
|
||||
binary::binary_enum binary::s_mode = binary::s_default_mode;
|
||||
|
||||
struct ostring : public object
|
||||
{
|
||||
//
|
||||
|
|
@ -407,35 +373,9 @@ void object::show(ostream& stream)
|
|||
switch(_type)
|
||||
{
|
||||
case cmd_number:
|
||||
//(void)mpfr_printf(s_mpfr_printf_format.c_str(), &((number*)this)->_value.mpfr);
|
||||
(void)mpfr_sprintf(buffer, s_mpfr_printf_format.c_str(), ((number*)this)->_value.mpfr);
|
||||
stream<<buffer;
|
||||
break;
|
||||
case cmd_binary:
|
||||
{
|
||||
// TODO stream and not cout
|
||||
cout << "# ";
|
||||
switch(((binary*)this)->s_mode)
|
||||
{
|
||||
case binary::dec: stream<<std::right<<std::setw(8)<<std::dec<<((binary*)this)->_value<<" d"; break;
|
||||
case binary::hex: stream<<std::right<<std::setw(8)<<std::hex<<((binary*)this)->_value<<" h"; break;
|
||||
case binary::oct: stream<<std::right<<std::setw(8)<<std::oct<<((binary*)this)->_value<<" o"; break;
|
||||
case binary::bin:
|
||||
{
|
||||
string mybin;
|
||||
for (int i = (int)(log((double)((binary*)this)->_value) / log(2.)); i>=0; i--)
|
||||
{
|
||||
if (((binary*)this)->_value & (1 << i))
|
||||
mybin+='1';
|
||||
else
|
||||
mybin+='0';
|
||||
}
|
||||
stream<<std::right<<std::setw(20)<<std::oct<<mybin<<" b";
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case cmd_string:
|
||||
stream << "\"" << ((ostring*)this)->_value << "\"";
|
||||
break;
|
||||
|
|
@ -806,10 +746,9 @@ public:
|
|||
|
||||
static void apply_default()
|
||||
{
|
||||
//default float precision, float mode, binary mode, verbosity
|
||||
//default float precision, float mode, verbosity
|
||||
number::s_mode = number::s_default_mode;
|
||||
number::s_current_precision = number::s_default_precision;
|
||||
binary::s_mode = binary::s_default_mode;
|
||||
|
||||
// format for mpfr_printf
|
||||
stringstream ss;
|
||||
|
|
@ -830,17 +769,6 @@ private:
|
|||
heap _local_heap;
|
||||
heap* _parent_local_heap;
|
||||
|
||||
// helpers for keywords implementation
|
||||
integer_t getb()
|
||||
{
|
||||
return ((binary*)_stack->pop_back())->_value;
|
||||
}
|
||||
|
||||
void putb(integer_t value)
|
||||
{
|
||||
((binary*)_stack->allocate_back(sizeof(binary), cmd_binary))->set(value);
|
||||
}
|
||||
|
||||
int stack_size()
|
||||
{
|
||||
return _stack->size();
|
||||
|
|
@ -859,7 +787,6 @@ private:
|
|||
// keywords implementation
|
||||
#include "rpn-general.h"
|
||||
#include "rpn-real.h"
|
||||
#include "rpn-binary.h"
|
||||
#include "rpn-test.h"
|
||||
#include "rpn-stack.h"
|
||||
#include "rpn-string.h"
|
||||
|
|
|
|||
Loading…
Reference in a new issue