OCC(1)
OCC - old (cfront-based) C++ compiler
As shipped in IRIX 6.5. First release of IRIX 6.5.
NAME OCC - old (cfront-based) C++ compiler SYNOPSIS OCC [ option ] ... file ... CC -use_cfront [ option ] ... file ... DESCRIPTION OCC (capital OCC) invokes the cfront translator to translate C++ source code to C source code. Its normal operation is then to invoke the C compiler cc(1) to generate an object file. CC will invoke OCC if given the -use_cfront option. In the subsequent discussion below, CC refers to OCC. CC takes arguments ending in .C, .c, .c++, .cc, or .cxx to be C++ source programs. Files with the suffixes .a , .o, and .s, are also accepted by the CC command and passed to cc(1). CC defines the same symbols for preprocessing as cc, except that __cplusplus and _LANGUAGE_C_PLUS_PLUS are defined, and LANGUAGE_C and _LANGUAGE_C are not. By default, CC invokes the ANSI preprocessor and generates ANSI C intermediate code, just as if -xansi were specified on the command line. Note that when the ANSI preprocessor is used, the symbol __ANSI_CPP is always defined. Normally, programmers will not care about the intermediate code, but they may want to do K&R-style preprocessing. The -cckr command line option makes this possible. CC interprets the following options (see ld(1) for load-time options): -c Produce binaries only, suppressing the link phase. -cckr Do K&R preprocessing and generate K&R C. -xansi Do ANSI preprocessing and generate ANSI C. This is the default. If more than one of -cckr and -xansi is specified, the one last on the command line prevails. -E Run only the preprocessor on the C++ source files and send the result to standard output. -F Run only the preprocessor and C++-to-C translator on the C++ source files. The output is C source code suitable as a .c file for cc(1). +I Save the intermediate C source file with suffix ..c in the current directory. +L Output line numbers to intermediate file in #line format. -.suffix Instead of using standard output for the -E or -F options, place the output from each C++ source file on a file with the corresponding .suffix. -MDupdate filename While compiling, update filename to contain header, library, and runtime make(1) dependencies for CC's output file. -all Link in all of the objects from the archive following this flag. Used in conjunction with the -shared flag when creating a shared object. +d Suppress inline expansion of functions declared as inline. -dollar Allow the dollar sign ($) as a character in C++ identifiers. -n Print commands generated by CC but do not execute them. -nofilt Normally, CC pipes the error output from the link phase through the filter /usr/lib/c++/c++filt so that the names of undefined symbols will be translated from their internal, encoded ("mangled") form to a more easily readable form: for example, foo__Fii will be translated to foo(int, int). -nofilt suppresses this filtering operation. -o output Name the final output file output. +p Disallow all anachronistic constructs. Ordinarily the translator warns about anachronistic constructs. Under +p (for "pure"), the translator will not compile code containing anachronistic constructs, such as "assignment to this." See the 3.0 C++ Product Reference Manual for a list of anachronisms. -shared Create a dynamic shared object (DSO) as the final output file. +v print commands invoked by CC as they are executed (verbose output). To print commands invoked by cc , use the -v option. +w Warn about all questionable constructs. Without the +w option, the translator issues warnings only about constructs that are almost certainly problems. +a[01] The translator can generate either ANSI C style or "Classic C" (also known as K&R C) style declarations. The +a option specifies which style of declarations to produce. +a0 causes the translator to produce "Classic C" style declarations. +a1, the default, causes the translator to produce ANSI C style declarations. The template instantiation system adds several options to CC. -pta Instantiate a whole template class rather than only those members that are needed. -ptesuffix Use suffix as the standard source suffix instead of .c. Only the standard suffixes .C, .c++, .cc, and .cxx are allowed. -ptn Change the default instantiation behavior for one-file programs to that of larger programs, where instantiation is broken out separately and the repository updated. One-file programs normally have instantiation optimized so that instantiation is done into the application object itself. -ptrpathname Specify a repository, with ./ptrepository the default. If several repositories are given, only the first is writable, and the default repository is ignored unless explicitly named. -pts Split instantiations into separate object files, with one function per object (including overloaded functions), and all class static data and virtual functions grouped into a single object. -ptv Turn on verbose or verify mode, which displays each phase of instantiation as it occurs, together with the elapsed time in seconds that phase took to complete. Use of this option is recommended if you are new to templates. With verbose mode, the reason why an instantiation is done and the exact CC command used are displayed. In release 3.0, -pts and -pta cannot be used together, that is, -pts can only be used to split up needed functions rather than all functions. The template instantiation mechanism uses the system utilities sort and grep. It uses the search path to find these utilities, so if there is a version of one of them in the search path ahead of the standard system version, surprising errors may occur. -D, -I, -U, -P, and -M are passed to the preprocessor (see cpp(1)). -M also causes processing to stop after the preprocessor. It is used to generate make dependencies, which are written to the standard output. All other options are passed to the C compiler, except the -j option, which is not supported by CC. FILES file.{C,c,c++,cc,cxx} C++ source files. file..c cfront output file.o object file a.out linked output /usr/bin/CC C++ driver /usr/lib/cpp C preprocessor /usr/lib/c++/cfront C++-to-C translator /usr/bin/cc C compiler /usr/lib/c++/markc++ mark object files as C++ /usr/lib/c++/c++patch link global constructors and destructors /usr/lib/libC.a C++ library /usr/lib/libc.a standard C library; see Section (3) in the UNIX System V Programmer Reference Manual /usr/include/CC standard directory for C++-specific header files. SEE ALSO Margaret Ellis and Bjarne Stroustrup, The Annotated C++ Reference Manual, Addison-Wesley 1990. cc(1), ld(1), cpp(1), as(1), mips2(5). DIAGNOSTICS The diagnostics produced by CC itself are intended to be self- explanatory. Occasional messages may be produced by ld(1). No messages should be produced by cc(1). NOTES CC always defines the symbol __cplusplus to the preprocessor. The -j option is not supported by OCC. (It is supported by CC). -O3 compilations require all the source files to be listed on a single commandline.