tMakefile: increment VERSION to 0.1.2 - numtools - perform numerical operations on vectors and matrices in unix pipes
 (HTM) git clone git://src.adamsgaard.dk/numtools
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       ---
 (DIR) commit 59276b770d09a73afca015d649e2726d7ab2bec7
 (DIR) parent 7a3d0ac06b0b914fbd04bd19e76fc682fcb38a20
 (HTM) Author: Anders Damsgaard <anders@adamsgaard.dk>
       Date:   Tue, 31 Aug 2021 10:42:38 +0200
       
       Makefile: increment VERSION to 0.1.2
       
       Diffstat:
         M Makefile                            |       2 +-
         A arg.h                               |      38 +++++++++++++++++++++++++++++++
       
       2 files changed, 39 insertions(+), 1 deletion(-)
       ---
 (DIR) diff --git a/Makefile b/Makefile
       t@@ -1,7 +1,7 @@
        .POSIX:
        
        NAME = mathtools
       -VERSION = 0.1.1
       +VERSION = 0.1.2
        
        # paths
        PREFIX = /usr/local
 (DIR) diff --git a/arg.h b/arg.h
       t@@ -0,0 +1,38 @@
       +/* by 20h */
       +#ifndef ARG_H
       +#define ARG_H
       +
       +#define USED(x) ((void)(x))
       +
       +extern char *argv0;
       +
       +#define ARGBEGIN        for(argv0 = *argv, argv++, argc--;\
       +                                        argv[0] && argv[0][0] == '-'\
       +                                        && argv[0][1];\
       +                                        argc--, argv++) {\
       +                                char _argc;\
       +                                char **_argv;\
       +                                if(argv[0][1] == '-' && argv[0][2] == '\0') {\
       +                                        argv++;\
       +                                        argc--;\
       +                                        break;\
       +                                }\
       +                                int i_;\
       +                                for(i_ = 1, _argv = argv; argv[0][i_];\
       +                                                i_++) {\
       +                                        if(_argv != argv)\
       +                                                break;\
       +                                        _argc = argv[0][i_];\
       +                                        switch(_argc)
       +
       +#define ARGEND                        }\
       +                                USED(_argc);\
       +                        }\
       +                        USED(argv);\
       +                        USED(argc);
       +
       +#define        EARGF(x)        ((argv[1] == NULL)? ((x), abort(), (char *)0) :\
       +                        (argc--, argv++, argv[0]))
       +
       +#endif
       +