Pascal to C/C++ converter. This is yet another Pascal to C/C++ converter. The primary idea of this. Some old programs written by me in Turbo Pascal. Personal Open source Business Explore. Watch 1 Star 0 Fork 0 markondej / turbo.
A chess game written is turbo pascal. 1 weekly downloads Pascal Evo. Free Pascal compilers. How to create software using Lazarus/Free Pascal. TaoYue.com: Pascal programming tutorial for beginners. A library of mathematical/scientific routines and programs written in Pascal. At this moment it was tested. Turbo Pascal, Oregon Pascal, Sun Pascal and HP Pascal. Using of C++ language allows. Pascal types and constructions into C++ classes. I use C++ templates to implement Pascal arrays. Special template classes are used for conformant arrays. Turbo Pascal extensions are. C++ language. To test C++ translation and. Turbo Pascal extensions I convert BGIDEMO. PAS and LISTER. PAS. Turbo Pascal distribution and also convert some. Turbo Pascal by my friends. Moreover it is possible to compile it, link with. Win. BGI library and run it under Windows or X- Windows. Converter consists of two. Pascal header for converter ptoc. Turbo Pascal) and include file for all converted. To run converter you should only specify path to. To compile and link. You should. either explicitly specify name of makefile: nmake - f makefile. For MS- Windows you can download this tools. Low value of Pascal array bounds is subtracted from index. When array is passed to conformant array parameter or. Pascal array bounds are passed before array. Low bound is always passed as it was mentioned in Pascal. To avoid asserts overhead. NDEBUG macro (pass - DNDEBUG. C++ compiler). Following functions. Pascal operations with sets. Set. Elem. Type elem, set s). There is a special constructor for set constants: setof(). Instantiation of this class with constant MAX. There are following. C FILE structure, file name. IO- operation error status, open mode, file status (and FAB pointer. Open. VMS system). Special macros are used for all Pascal. Bellow there is a table. Pascal functions, macros and C functions: Mapping between Pascal and C I/O functions. Pascal. C macro. C functionrewriterewritepio. First flag is used. There is the. following invariant: flag fs. A table below shows state. Flags settingsfunctionfs. Format string can include arbitrary text. Format specifiers for read and write operationstypereadwriteinteger%i%i. In former case value of this. AFTER (unlike C) corresponding parameter. Pto. C uses streamio. Pascal IO operation in C++. I called this library Win. BGI. Also may be mapping of fonts. But as far as sources are also available, you can. Unfortunately direct work. COPYPUT) is supported only for 2. Windows mode. I am also sorry for the lack of. Win. BGI functions. So summarizing all above. Win. BGI advantages. Allows you to run your old Turbo- C DOS applications in 3. So you can easily overcome all 6. Kb limitations. and getting 3. It seems to me that BGI is much more. For example. the following program will not work with Win. BGI. initgraph(& hd, & hm, NULL). Correct version of this program is. NULL). while (! kbhit()) putpixel(random(6. To handle REDRAW message Win. BGI has to perform drawing twice. In this case drawing is performed. I am hope that current version of Win. BGI. can satisfy requirements of most simple Turbo- C graphics applications. Special new mode VGAMAX is supported by Win. BGI, causing. creation of maximized window. To use this mode you should either. This methods perform. If you specify - analyze option. When you run converter. Instead of this converter declare such arrays as. C compiler warning or error. It seems to me, that there are usually few places. So we decide that efficient generation. This optimization can be. When this option is specified. Pto. C strictly emulates Pascal call semantic for arrays passed by value. I don't know reasons of using this. Pto. C uses special macro. This macro uses. alloca() function from C library, which allocates space from. That is why macro as(). If size of string constant is less. Pto. C recognize this qualifier and treat it as. C (not C++) function declaration. There are some specific items. Zero terminated strings. As far as character arrays in Pascal are not zero terminated. Pto. C provides function. Pascal array to internal. Turbo Pascal string type can be implicitly converted. So no explicit operation. But as far as there are no. C, references should be replaced with pointers and. When C++ is used as target language and. Actual parameters are passed by means. If your specify - assign option. But Pto. C still use default operator= generated by compiler. To compile code produced. DNO. If size of string constant is less. This classes. have constructors and assignment operators and so they can not. C aggregates notation . To avoid this problem either manually replace such places. C arrays or use option - cstring of compiler. This approach works well only when this types are. In this case. you can face with two problems: one is that pointers will not. Converter can't help your in this. You should change types of some variables and records fields. In language C short and. To help to deal with this problem. Lets look at the. Pascal construction with and without. Pascal. C without - unsigned. C with - unsignedif v. There are. two options in converter which can help you in this case. First. option is - intset, which order converter to generate short sets. Operations with. short sets are implemented by macros using bit arithmetic. When you specify option - smallenum converter. So construction. colors = (red, green, blue). But if Pascal sources are not properly. C code using some indentation. GNU indent, which is freely distributed. GNU indent has one interesting bug: it fails to work with. Pascal . To avoid this problem just replace such. This problem. can be solved either by passing option to linker to merge symbols. Specifying - extern option tells. EXTERN qualifier. EXTERN is defined as. Pto. C will search for included. Pascal files in all specified directories. Exactly one input file should be specified for Pto. C. If output file name is not specified, Pto. C. will creates file with the same name as source Pascal file with extension. By default converter produce C++ output. Use method. array: :assign() instead. Invocation of this function. Pascal runtime library structures. If you prefer. to preserve original style of using uppercase and lowercase. Do not mix (* *) and . When this option is set. Pto. C strictly emulates Pascal call semantic for arrays passed by value. By default Pto. C optimizes passing of array. Array parameter is copied only if it is changed. By default. Pto. C just skip this tags and doesn't output them to C file. By default. Pto. C just skip this tags and doesn't output them to C file. To avoid the problem. C++ compiler forcing char type to be unsigned. Other are. treated as normal comments. Shareware status doesn't mean. I will do my best to fix all reported bugs. Pto. C to fit your requirements.
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