cpp conversion: minimal steps to fix compilation errors, not warnings

1 files changed, 581 insertions, 0 deletions

diff --git a/src/proj.cpp b/src/proj.cpp
new file mode 100644
index 00000000..2405781c
--- /dev/null
+++ b/src/proj.cpp
@@ -0,0 +1,581 @@
+/* <<<< Cartographic projection filter program >>>> */
+#include "proj.h"
+#include "projects.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <math.h>
+#include "emess.h"
+
+#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__WIN32__)
+#  include <fcntl.h>
+#  include <io.h>
+#  define SET_BINARY_MODE(file) _setmode(_fileno(file), O_BINARY)
+#else
+#  define SET_BINARY_MODE(file)
+#endif
+
+#define MAX_LINE 1000
+#define MAX_PARGS 100
+#define PJ_INVERS(P) (P->inv ? 1 : 0)
+
+extern void gen_cheb(int, projUV(*)(projUV), char *, PJ *, int, char **);
+
+static PJ *Proj;
+static union {
+    projUV (*generic)(projUV, PJ *);
+    projXY (*fwd)(projLP, PJ *);
+    projLP (*inv)(projXY, PJ *);
+} proj;
+
+static int
+    reversein = 0,  /* != 0 reverse input arguments */
+    reverseout = 0, /* != 0 reverse output arguments */
+    bin_in = 0,     /* != 0 then binary input */
+    bin_out = 0,    /* != 0 then binary output */
+    echoin = 0,     /* echo input data to output line */
+    tag = '#',      /* beginning of line tag character */
+    inverse = 0,    /* != 0 then inverse projection */
+    prescale = 0,   /* != 0 apply cartesian scale factor */
+    dofactors = 0,  /* determine scale factors */
+    very_verby = 0, /* very verbose mode */
+    postscale = 0;
+
+static char
+    *cheby_str,         /* string controlling Chebychev evaluation */
+    *oform = (char *)0, /* output format for x-y or decimal degrees */
+    oform_buffer[16];   /* Buffer for oform when using -d */
+
+static const char
+    *oterr = "*\t*",    /* output line for unprojectable input */
+    *usage = "%s\nusage: %s [ -bdeEfiIlmorsStTvVwW [args] ] [ +opts[=arg] ] [ files ]\n";
+
+static PJ_FACTORS facs;
+
+static double (*informat)(const char *, char **), /* input data deformatter function */
+              fscale = 0.;                        /* cartesian scale factor */
+
+static projUV int_proj(projUV data) {
+    if (prescale) {
+        data.u *= fscale;
+        data.v *= fscale;
+    }
+
+    data = (*proj.generic)(data, Proj);
+
+    if (postscale && data.u != HUGE_VAL) {
+        data.u *= fscale;
+        data.v *= fscale;
+    }
+
+    return data;
+}
+
+/* file processing function */
+static void process(FILE *fid) {
+    char line[MAX_LINE+3], *s = 0, pline[40];
+    PJ_COORD data;
+
+    for (;;) {
+        int facs_bad = 0;
+        ++emess_dat.File_line;
+
+        if (bin_in) {   /* binary input */
+            if (fread(&data, sizeof(projUV), 1, fid) != 1)
+                break;
+        } else {    /* ascii input */
+            if (!(s = fgets(line, MAX_LINE, fid)))
+                break;
+
+            if (!strchr(s, '\n')) { /* overlong line */
+                int c;
+                (void)strcat(s, "\n");
+                /* gobble up to newline */
+                while ((c = fgetc(fid)) != EOF && c != '\n') ;
+            }
+
+            if (*s == tag) {
+                if (!bin_out)
+                    (void)fputs(line, stdout);
+                continue;
+            }
+
+            if (reversein) {
+                data.uv.v = (*informat)(s, &s);
+                data.uv.u = (*informat)(s, &s);
+            } else {
+                data.uv.u = (*informat)(s, &s);
+                data.uv.v = (*informat)(s, &s);
+            }
+
+            if (data.uv.v == HUGE_VAL)
+                data.uv.u = HUGE_VAL;
+
+            if (!*s && (s > line)) --s; /* assumed we gobbled \n */
+            if (!bin_out && echoin) {
+                char t;
+                t = *s;
+                *s = '\0';
+                (void)fputs(line, stdout);
+                *s = t;
+                putchar('\t');
+            }
+        }
+
+        if (data.uv.u != HUGE_VAL) {
+            PJ_COORD coord;
+            coord.lp = data.lp;
+            if (prescale) { data.uv.u *= fscale; data.uv.v *= fscale; }
+            if (dofactors && !inverse) {
+                facs = proj_factors(Proj, coord);
+                facs_bad = proj_errno(Proj);
+            }
+
+            data.xy = (*proj.fwd)(data.lp, Proj);
+
+            if (dofactors && inverse) {
+                facs = proj_factors(Proj, coord);
+                facs_bad = proj_errno(Proj);
+            }
+
+            if (postscale && data.uv.u != HUGE_VAL)
+                { data.uv.u *= fscale; data.uv.v *= fscale; }
+        }
+
+        if (bin_out) { /* binary output */
+            (void)fwrite(&data, sizeof(projUV), 1, stdout);
+            continue;
+        } else if (data.uv.u == HUGE_VAL) /* error output */
+            (void)fputs(oterr, stdout);
+        else if (inverse && !oform) {   /*ascii DMS output */
+            if (reverseout) {
+                (void)fputs(rtodms(pline, data.uv.v, 'N', 'S'), stdout);
+                putchar('\t');
+                (void)fputs(rtodms(pline, data.uv.u, 'E', 'W'), stdout);
+            } else {
+                (void)fputs(rtodms(pline, data.uv.u, 'E', 'W'), stdout);
+                putchar('\t');
+                (void)fputs(rtodms(pline, data.uv.v, 'N', 'S'), stdout);
+            }
+        } else {    /* x-y or decimal degree ascii output, scale if warranted by output units */
+            if (inverse) {
+                if (proj_angular_input(Proj, PJ_FWD)) {
+                    data.uv.v *= RAD_TO_DEG;
+                    data.uv.u *= RAD_TO_DEG;
+                }
+            } else {
+                if (proj_angular_output(Proj, PJ_FWD)) {
+                    data.uv.v *= RAD_TO_DEG;
+                    data.uv.u *= RAD_TO_DEG;
+                }
+            }
+
+            if (reverseout) {
+                (void)printf(oform, data.uv.v); putchar('\t');
+                (void)printf(oform, data.uv.u);
+            } else {
+                (void)printf(oform, data.uv.u); putchar('\t');
+                (void)printf(oform, data.uv.v);
+            }
+        }
+
+        /* print scale factor data */
+        if (dofactors) {
+            if (!facs_bad)
+                (void)printf("\t<%g %g %g %g %g %g>",
+                    facs.meridional_scale, facs.parallel_scale, facs.areal_scale,
+                    facs.angular_distortion * RAD_TO_DEG, facs.tissot_semimajor, facs.tissot_semiminor);
+            else
+                (void)fputs("\t<* * * * * *>", stdout);
+        }
+        (void)fputs(bin_in ? "\n" : s, stdout);
+    }
+}
+
+/* file processing function --- verbosely */
+static void vprocess(FILE *fid) {
+    char line[MAX_LINE+3], *s, pline[40];
+    LP dat_ll;
+    projXY dat_xy;
+    int linvers;
+    PJ_COORD coord;
+
+
+    if (!oform)
+        oform = "%.3f";
+
+    if (bin_in || bin_out)
+        emess(1,"binary I/O not available in -V option");
+
+    for (;;) {
+        proj_errno_reset(Proj);
+        ++emess_dat.File_line;
+
+        if (!(s = fgets(line, MAX_LINE, fid)))
+            break;
+
+        if (!strchr(s, '\n')) { /* overlong line */
+            int c;
+            (void)strcat(s, "\n");
+            /* gobble up to newline */
+            while ((c = fgetc(fid)) != EOF && c != '\n') ;
+        }
+
+        if (*s == tag) { /* pass on data */
+            (void)fputs(s, stdout);
+            continue;
+        }
+
+        /* check to override default input mode */
+        if (*s == 'I' || *s == 'i') {
+            linvers = 1;
+            ++s;
+        } else
+            linvers = inverse;
+
+        if (linvers) {
+            if (!PJ_INVERS(Proj)) {
+                emess(-1,"inverse for this projection not avail.\n");
+                continue;
+            }
+            dat_xy.x = strtod(s, &s);
+            dat_xy.y = strtod(s, &s);
+            if (dat_xy.x == HUGE_VAL || dat_xy.y == HUGE_VAL) {
+                emess(-1,"lon-lat input conversion failure\n");
+                continue;
+            }
+            if (prescale) { dat_xy.x *= fscale; dat_xy.y *= fscale; }
+            if (reversein) {
+                projXY temp = dat_xy;
+                dat_xy.x = temp.y;
+                dat_xy.y = temp.x;
+            }
+            dat_ll = pj_inv(dat_xy, Proj);
+        } else {
+            dat_ll.lam = proj_dmstor(s, &s);
+            dat_ll.phi = proj_dmstor(s, &s);
+            if (dat_ll.lam == HUGE_VAL || dat_ll.phi == HUGE_VAL) {
+                emess(-1,"lon-lat input conversion failure\n");
+                continue;
+            }
+            if (reversein) {
+                LP temp = dat_ll;
+                dat_ll.lam = temp.phi;
+                dat_ll.phi = temp.lam;
+            }
+            dat_xy = pj_fwd(dat_ll, Proj);
+            if (postscale) { dat_xy.x *= fscale; dat_xy.y *= fscale; }
+        }
+
+        /* For some reason pj_errno does not work as expected in some   */
+        /* versions of Visual Studio, so using pj_get_errno_ref instead */
+        if (*pj_get_errno_ref()) {
+            emess(-1, pj_strerrno(*pj_get_errno_ref()));
+            continue;
+        }
+
+        if (!*s && (s > line)) --s; /* assumed we gobbled \n */
+        coord.lp = dat_ll;
+        facs = proj_factors(Proj, coord);
+        if (proj_errno(Proj)) {
+            emess(-1,"failed to compute factors\n\n");
+            continue;
+        }
+
+        if (*s != '\n')
+            (void)fputs(s, stdout);
+
+        (void)fputs("Longitude: ", stdout);
+        (void)fputs(proj_rtodms(pline, dat_ll.lam, 'E', 'W'), stdout);
+        (void)printf(" [ %.11g ]\n", dat_ll.lam * RAD_TO_DEG);
+        (void)fputs("Latitude:  ", stdout);
+        (void)fputs(proj_rtodms(pline, dat_ll.phi, 'N', 'S'), stdout);
+        (void)printf(" [ %.11g ]\n", dat_ll.phi * RAD_TO_DEG);
+        (void)fputs("Easting (x):   ", stdout);
+        (void)printf(oform, dat_xy.x); putchar('\n');
+        (void)fputs("Northing (y):  ", stdout);
+        (void)printf(oform, dat_xy.y); putchar('\n');
+        (void)printf("Meridian scale (h) : %.8f  ( %.4g %% error )\n", facs.meridional_scale, (facs.meridional_scale-1.)*100.);
+        (void)printf("Parallel scale (k) : %.8f  ( %.4g %% error )\n", facs.parallel_scale, (facs.parallel_scale-1.)*100.);
+        (void)printf("Areal scale (s):     %.8f  ( %.4g %% error )\n", facs.areal_scale, (facs.areal_scale-1.)*100.);
+        (void)printf("Angular distortion (w): %.3f\n", facs.angular_distortion * RAD_TO_DEG);
+        (void)printf("Meridian/Parallel angle: %.5f\n", facs.meridian_parallel_angle * RAD_TO_DEG);
+        (void)printf("Convergence : ");
+        (void)fputs(proj_rtodms(pline, facs.meridian_convergence, 0, 0), stdout);
+        (void)printf(" [ %.8f ]\n", facs.meridian_convergence * RAD_TO_DEG);
+        (void)printf("Max-min (Tissot axis a-b) scale error: %.5f %.5f\n\n", facs.tissot_semimajor, facs.tissot_semiminor);
+    }
+}
+
+int main(int argc, char **argv) {
+    char *arg, **eargv = argv, *pargv[MAX_PARGS], **iargv = argv;
+    FILE *fid;
+    int pargc = 0, iargc = argc, eargc = 0, mon = 0;
+
+    if ( (emess_dat.Prog_name = strrchr(*argv,DIR_CHAR)) != NULL)
+        ++emess_dat.Prog_name;
+    else emess_dat.Prog_name = *argv;
+    inverse = ! strncmp(emess_dat.Prog_name, "inv", 3);
+    if (argc <= 1 ) {
+        (void)fprintf(stderr, usage, pj_get_release(), emess_dat.Prog_name);
+        exit (0);
+    }
+
+    /* process run line arguments */
+    while (--argc > 0) { /* collect run line arguments */
+        if(**++argv == '-') for(arg = *argv;;) {
+            switch(*++arg) {
+              case '\0': /* position of "stdin" */
+                if (arg[-1] == '-') eargv[eargc++] = "-";
+                break;
+              case 'b': /* binary I/O */
+                bin_in = bin_out = 1;
+                continue;
+              case 'v': /* monitor dump of initialization */
+                mon = 1;
+                continue;
+              case 'i': /* input binary */
+                bin_in = 1;
+                continue;
+              case 'o': /* output binary */
+                bin_out = 1;
+                continue;
+              case 'I': /* alt. method to spec inverse */
+                inverse = 1;
+                continue;
+              case 'E': /* echo ascii input to ascii output */
+                echoin = 1;
+                continue;
+              case 'V': /* very verbose processing mode */
+                very_verby = 1;
+                mon = 1;
+                continue;
+              case 'S': /* compute scale factors */
+                dofactors = 1;
+                continue;
+              case 't': /* set col. one char */
+                if (arg[1]) tag = *++arg;
+                else emess(1,"missing -t col. 1 tag");
+                continue;
+              case 'l': /* list projections, ellipses or units */
+                if (!arg[1] || arg[1] == 'p' || arg[1] == 'P') {
+                    /* list projections */
+                    const struct PJ_LIST *lp;
+                    int do_long = arg[1] == 'P', c;
+                    const char *str;
+
+                    for (lp = proj_list_operations() ; lp->id ; ++lp) {
+                        if( strcmp(lp->id,"latlong") == 0
+                            || strcmp(lp->id,"longlat") == 0
+                            || strcmp(lp->id,"geocent") == 0 )
+                            continue;
+
+                        (void)printf("%s : ", lp->id);
+                        if (do_long)  /* possibly multiline description */
+                            (void)puts(*lp->descr);
+                        else { /* first line, only */
+                            str = *lp->descr;
+                            while ((c = *str++) && c != '\n')
+                                putchar(c);
+                            putchar('\n');
+                        }
+                    }
+                } else if (arg[1] == '=') { /* list projection 'descr' */
+                    const struct PJ_LIST *lp;
+
+                    arg += 2;
+                    for (lp = proj_list_operations(); lp->id ; ++lp)
+                        if (!strcmp(lp->id, arg)) {
+                            (void)printf("%9s : %s\n", lp->id, *lp->descr);
+                            break;
+                        }
+                } else if (arg[1] == 'e') { /* list ellipses */
+                    const struct PJ_ELLPS *le;
+
+                    for (le = proj_list_ellps(); le->id ; ++le)
+                        (void)printf("%9s %-16s %-16s %s\n",
+                                     le->id, le->major, le->ell, le->name);
+                } else if (arg[1] == 'u') { /* list units */
+                    const struct PJ_UNITS *lu;
+
+                    for (lu = proj_list_units(); lu->id ; ++lu)
+                        (void)printf("%12s %-20s %s\n",
+                                     lu->id, lu->to_meter, lu->name);
+                } else if (arg[1] == 'd') { /* list datums */
+                    const struct PJ_DATUMS *ld;
+
+                    printf("__datum_id__ __ellipse___ __definition/comments______________________________\n" );
+                    for (ld = pj_get_datums_ref(); ld->id ; ++ld)
+                    {
+                        printf("%12s %-12s %-30s\n",
+                               ld->id, ld->ellipse_id, ld->defn);
+                        if( ld->comments != NULL && strlen(ld->comments) > 0 )
+                            printf( "%25s %s\n", " ", ld->comments );
+                    }
+                } else
+                    emess(1,"invalid list option: l%c",arg[1]);
+                exit(0);
+                /* cppcheck-suppress duplicateBreak */
+                continue; /* artificial */
+              case 'e': /* error line alternative */
+                if (--argc <= 0)
+                    noargument:
+                emess(1,"missing argument for -%c",*arg);
+                oterr = *++argv;
+                continue;
+              case 'T': /* generate Chebyshev coefficients */
+                if (--argc <= 0) goto noargument;
+                cheby_str = *++argv;
+                continue;
+              case 'm': /* cartesian multiplier */
+                if (--argc <= 0) goto noargument;
+                postscale = 1;
+                if (!strncmp("1/",*++argv,2) ||
+                    !strncmp("1:",*argv,2)) {
+                    if((fscale = atof((*argv)+2)) == 0.)
+                        goto badscale;
+                    fscale = 1. / fscale;
+                } else
+                    if ((fscale = atof(*argv)) == 0.) {
+                      badscale:
+                        emess(1,"invalid scale argument");
+                    }
+                continue;
+              case 'W': /* specify seconds precision */
+              case 'w': /* -W for constant field width */
+              {
+                int c = arg[1];
+                if (c != 0 && isdigit(c)) {
+                    set_rtodms(c - '0', *arg == 'W');
+                    ++arg;
+                } else
+                    emess(1,"-W argument missing or non-digit");
+                continue;
+              }
+              case 'f': /* alternate output format degrees or xy */
+                if (--argc <= 0) goto noargument;
+                oform = *++argv;
+                continue;
+              case 'd':
+                if (--argc <= 0) goto noargument;
+                sprintf(oform_buffer, "%%.%df", atoi(*++argv));
+                oform = oform_buffer;
+                break;
+              case 'r': /* reverse input */
+                reversein = 1;
+                continue;
+              case 's': /* reverse output */
+                reverseout = 1;
+                continue;
+              default:
+                emess(1, "invalid option: -%c",*arg);
+                break;
+            }
+            break;
+        } else if (**argv == '+') { /* + argument */
+            if (pargc < MAX_PARGS)
+                pargv[pargc++] = *argv + 1;
+            else
+                emess(1,"overflowed + argument table");
+        } else /* assumed to be input file name(s) */
+            eargv[eargc++] = *argv;
+    }
+    if (eargc == 0 && !cheby_str) /* if no specific files force sysin */
+        eargv[eargc++] = "-";
+    else if (eargc > 0 && cheby_str) /* warning */
+        emess(4, "data files when generating Chebychev prohibited");
+    /* done with parameter and control input */
+    if (inverse && postscale) {
+        prescale = 1;
+        postscale = 0;
+        fscale = 1./fscale;
+    }
+    if (!(Proj = pj_init(pargc, pargv)))
+        emess(3,"projection initialization failure\ncause: %s",
+              pj_strerrno(pj_errno));
+
+    if (!proj_angular_input(Proj, PJ_FWD)) {
+        emess(3, "can't initialize operations that take non-angular input coordinates");
+        exit(0);
+    }
+
+    if (proj_angular_output(Proj, PJ_FWD)) {
+        emess(3, "can't initialize operations that produce angular output coordinates");
+        exit(0);
+    }
+
+    if (inverse) {
+        if (!Proj->inv)
+            emess(3,"inverse projection not available");
+        proj.inv = pj_inv;
+    } else
+        proj.fwd = pj_fwd;
+    if (cheby_str) {
+        gen_cheb(inverse, int_proj, cheby_str, Proj, iargc, iargv);
+        exit(0);
+    }
+
+    /* set input formatting control */
+    if (mon) {
+        pj_pr_list(Proj);
+        if (very_verby) {
+            (void)printf("#Final Earth figure: ");
+            if (Proj->es != 0.0) {
+                (void)printf("ellipsoid\n#  Major axis (a): ");
+                (void)printf(oform ? oform : "%.3f", Proj->a);
+                (void)printf("\n#  1/flattening: %.6f\n",
+                             1./(1. - sqrt(1. - Proj->es)));
+                (void)printf("#  squared eccentricity: %.12f\n", Proj->es);
+            } else {
+                (void)printf("sphere\n#  Radius: ");
+                (void)printf(oform ? oform : "%.3f", Proj->a);
+                (void)putchar('\n');
+            }
+        }
+    }
+
+    if (inverse)
+        informat = strtod;
+    else {
+        informat = proj_dmstor;
+        if (!oform)
+            oform = "%.2f";
+    }
+
+    if (bin_out) {
+        SET_BINARY_MODE(stdout);
+    }
+
+    /* process input file list */
+    for ( ; eargc-- ; ++eargv) {
+        if (**eargv == '-') {
+            fid = stdin;
+            emess_dat.File_name = "<stdin>";
+
+            if (bin_in)
+            {
+                SET_BINARY_MODE(stdin);
+            }
+
+        } else {
+            if ((fid = fopen(*eargv, "rb")) == NULL) {
+                emess(-2, *eargv, "input file");
+                continue;
+            }
+            emess_dat.File_name = *eargv;
+        }
+        emess_dat.File_line = 0;
+        if (very_verby)
+            vprocess(fid);
+        else
+            process(fid);
+        (void)fclose(fid);
+        emess_dat.File_name = 0;
+    }
+
+    if( Proj )
+        pj_free(Proj);
+
+    exit(0); /* normal completion */
+}