extern "C" G__value G__exec_tempfile G__P((char *file));
extern "C" void G__store_undo_position(void);
+#define PROMPT "GiNaC> "
+
#ifdef OBSCURE_CINT_HACK
#include <strstream>
}
basic * ex::last_created_or_assigned_bp=0;
+basic * ex::dummy_bp=0;
+long ex::last_created_or_assigned_exp=0;
#endif // def OBSCURE_CINT_HACK
{
int l = strlen(s);
int pos = 0;
- while ((pos<l)&&is_whitespace_char(s[pos])) pos++;
+ while ((pos<l)&&is_whitespace_char(s[pos]))
+ pos++;
return s[pos];
}
char last_non_whitespace_char(char const * s)
{
int pos = strlen(s)-1;
- while ((pos>=0) && is_whitespace_char(s[pos])) pos--;
+ while ((pos>=0) && is_whitespace_char(s[pos]))
+ pos--;
return s[pos];
}
fout << "{" << endl << command << endl << "}" << endl;
fout.close();
G__store_undo_position();
- retval=G__exec_tempfile(tmpfilename);
+ retval = G__exec_tempfile(tmpfilename);
G__security_recover(stdout);
remove(tmpfilename);
free(tmpfilename);
{
#ifdef OBSCURE_CINT_HACK
static G__value ref_symbol = exec_tempfile("symbol ginac_cint_internal_symbol; ginac_cint_internal_symbol;");
- static G__value ref_ex = exec_tempfile("ex ginac_cint_internal_ex; ginac_cint_internal_ex;");
+ static G__value ref_constant = exec_tempfile("constant ginac_cint_internal_constant; ginac_cint_internal_constant;");
static G__value ref_function = exec_tempfile("sin(ginac_cint_internal_symbol);");
- static G__value ref_power = exec_tempfile("power(ginac_cint_internal_symbol,ginac_cint_internal_symbol);");
+ static G__value ref_power = exec_tempfile("power(ex(ginac_cint_internal_symbol),ex(ginac_cint_internal_symbol));");
+ static G__value ref_numeric = exec_tempfile("numeric ginac_cint_internal_numeric; ginac_cint_internal_numeric;");
+ static G__value ref_ex = exec_tempfile("ex ginac_cint_internal_ex; ginac_cint_internal_ex;");
+ static bool basic_type_warning_already_displayed=false;
#endif // def OBSCURE_CINT_HACK
G__value retval = exec_tempfile(command);
static unsigned out_count = 0;
if (TYPES_EQUAL(retval,ref_ex)) {
- if (ex::last_created_or_assigned_bp_can_be_converted_to_ex()) {
- string varname = "Out"+ToString(++out_count);
+ string varname = "Out"+ToString(++out_count);
+ if (retval.obj.i!=ex::last_created_or_assigned_exp) {
+ // an ex was returned, but this is not the ex which was created last
+ // => this is not a temporary ex, but one that resides safely in memory
+
+ // cout << "warning: using ex from retval (experimental)" << endl;
+ ex::dummy_bp=((ex *)(void *)(retval.obj.i))->bp;
+ exec_tempfile("ex "+varname+"(*ex::dummy_bp);");
+ } else if (ex::last_created_or_assigned_bp_can_be_converted_to_ex()) {
//string varfill;
//for (int i=4-int(log10(out_count)); i>0; --i)
// varfill += ' ';
- exec_tempfile("ex "+varname+"(*ex::last_created_or_assigned_bp);\n"
- +"LLLAST=LLAST;\n"
- +"LLAST=LAST;\n"
- +"LAST="+varname+";\n"
- +"cout << \""+varname+" = \" << "+varname+" << endl << endl;");
+ exec_tempfile("ex "+varname+"(*ex::last_created_or_assigned_bp);");
} else {
cout << "warning: last_created_or_assigned_bp modified 0 or not evaluated or not dynallocated" << endl;
}
+ exec_tempfile(string()+"LLLAST=LLAST;\n"
+ +"LLAST=LAST;\n"
+ +"LAST="+varname+";\n"
+ +"cout << \""+varname+" = \" << "+varname+" << endl << endl;");
+ } else if (TYPES_EQUAL(retval,ref_symbol)||
+ TYPES_EQUAL(retval,ref_constant)||
+ TYPES_EQUAL(retval,ref_function)||
+ TYPES_EQUAL(retval,ref_power)||
+ TYPES_EQUAL(retval,ref_numeric)) {
+ if (!basic_type_warning_already_displayed) {
+ cout << endl
+ <<"WARNING: The return value of the last expression you entered was a symbol," << endl
+ << "constant, function, power or numeric, which cannot be safely displayed." << endl
+ << "To force the output, cast it explicitly to type 'ex' or use 'cout'," << endl
+ << "for example (assume 'x' is a symbol):" << endl
+ << PROMPT "ex(x);" << endl
+ << "OutX = x" << endl << endl
+ << PROMPT "cout << x << endl;" << endl
+ << "x" << endl << endl
+ << "This warning will not be shown again." << endl;
+ basic_type_warning_already_displayed=true;
+ }
}
#endif // def OBSCURE_CINT_HACK
}
<< " __, _______ requested, at this moment, for commercial use. Send e-mail to" << endl
<< " (__) * | <MXJ02154@niftyserve.or.jp>. The registration is free." << endl
<< " ._) i N a C | The GiNaC framework is Copyright by Johannes Gutenberg Univ.," << endl
- << "<-------------' Germany and licensed under the terms and conditions of the GPL." << endl << endl;
+ << "<-------------' Germany and licensed under the terms and conditions of the GPL." << endl
+ << endl;
}
int main(void)
char *line;
char prompt[G__ONELINE];
- greeting();
+ if (isatty(0))
+ greeting();
atexit(cleanup);
signal(SIGTERM,sigterm_handler);
G__init_cint("cint"); /* initialize cint */
- exec_tempfile("#include <string>\n");
+ // no longer needed as of cint 5.14.31
+ // exec_tempfile("#include <string>\n");
+
exec_tempfile("ex LAST,LLAST,LLLAST;\n");
bool quit = false;
bool next_command_is_function=false;
while (!quit) {
- strcpy(prompt,"GiNaC> ");
+ strcpy(prompt,PROMPT);
int open_braces = 0;
- bool end_of_command=false;
+ bool end_of_command = false;
string command;
while (!end_of_command) {
line = G__input(prompt);
-
+
int pos = 0;
- bool double_quote=false;
- bool single_quote=false;
+ bool double_quote = false;
+ bool single_quote = false;
while(line[pos]!='\0') {
switch(line[pos]) {
case '"':
git://www.ginac.de / ginac.git / blobdiff