Misc clang-tidy fixes, and added a .clang-tidy config file

.clang-tidy

@@ -0,0 +1,88 @@
+---
+Checks: "-*,\
+bugprone-*,\
+-bugprone-easily-swappable-parameters,\
+-bugprone-assignment-in-if-condition,\
+-bugprone-signed-char-misuse,\
+-bugprone-branch-clone,\
+-bugprone-narrowing-conversions,\
+-bugprone-macro-parentheses,\
+-bugprone-switch-missing-default-case,\
+-bugprone-suspicious-include,\
+-bugprone-reserved-identifier,\
+-bugprone-misplaced-widening-cast,\
+-bugprone-implicit-widening-of-multiplication-result,\
+-bugprone-suspicious-realloc-usage,\
+-bugprone-sizeof-expression,\
+cert*,\
+-cert-err33-c,\
+-cert-err34-c,\
+-cert-str34-c,\
+-cert-dcl03-c,\
+-cert-msc30-c,\
+-cert-msc50-cpp,\
+-cert-dcl37-c,\
+-cert-dcl51-cpp,\
+clang-analyzer-*,\
+-clang-analyzer-core.CallAndMessage,\
+-clang-analyzer-core.DivideZero,\
+-clang-analyzer-core.NonNullParamChecker,\
+-clang-analyzer-core.NullDereference,\
+-clang-analyzer-core.UndefinedBinaryOperatorResult,\
+-clang-analyzer-core.VLASize,\
+-clang-analyzer-core.uninitialized.ArraySubscript,\
+-clang-analyzer-core.uninitialized.Assign,\
+-clang-analyzer-core.uninitialized.Branch,\
+-clang-analyzer-cplusplus.Move,\
+-clang-analyzer-cplusplus.NewDelete,\
+-clang-analyzer-cplusplus.NewDeleteLeaks,\
+-clang-analyzer-cplusplus.PlacementNew,\
+-clang-analyzer-deadcode.DeadStores,\
+-clang-analyzer-optin.cplusplus.UninitializedObject,\
+-clang-analyzer-optin.cplusplus.VirtualCall,\
+-clang-analyzer-optin.mpi.MPI-Checker,\
+-clang-analyzer-optin.performance.Padding,\
+-clang-analyzer-optin.portability.UnixAPI,\
+-clang-analyzer-security.FloatLoopCounter,\
+-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling,\
+-clang-analyzer-security.insecureAPI.rand,\
+-clang-analyzer-security.insecureAPI.strcpy,\
+-clang-analyzer-unix.Malloc,\
+-clang-analyzer-unix.MallocSizeof,\
+-clang-analyzer-unix.MismatchedDeallocator,\
+-clang-analyzer-unix.cstring.NullArg,\
+-clang-analyzer-valist.Unterminated,\
+misc-*,\
+-misc-header-include-cycle,\
+-misc-include-cleaner,\
+-misc-no-recursion,\
+-misc-unused-parameters,\
+-misc-static-assert,\
+-misc-redundant-expression,\
+modernize-*,\
+-modernize-macro-to-enum,\
+mpi-*,\
+openmp-*,\
+performance-*,\
+-performance-no-int-to-ptr,\
+portability-*,\
+readability-*,\
+-readability-identifier-length,\
+-readability-isolate-declaration,\
+-readability-braces-around-statements,\
+-readability-magic-numbers,\
+-readability-else-after-return,\
+-readability-function-cognitive-complexity,\
+-readability-function-size,\
+-readability-non-const-parameter,\
+-readability-inconsistent-declaration-parameter-name,\
+-readability-avoid-unconditional-preprocessor-if,\
+-readability-named-parameter,\
+-readability-duplicate-include,\
+-readability-misleading-indentation,\
+-readability-avoid-const-params-in-decls,\
+-readability-redundant-declaration,\
+-readability-redundant-preprocessor,\
+"
+#WarningsAsErrors: "*"
+...

examples/C/format.c

@@ -45,7 +45,7 @@ main()
     /* Create a bunch of phoney data so we have something to write in
        the example file. */
     for (fp=(float *)temp, i=0; i<LAT_LEN*LON_LEN; i++)
-        *fp++ = 10.f + (float)i/10.f;
+        *fp++ = 10.F + (float)i/10.F;
 
     /* Now create the file in both formats with the same code. */
     for (i=0; i<2; i++)

examples/C/pres_temp_4D_wr.c

@@ -87,9 +87,9 @@ main()
     * would have some real data to write, for example, model
     * output. */
    for (lat = 0; lat < NLAT; lat++)
-      lats[lat] = START_LAT + 5.f*(float)lat;
+      lats[lat] = START_LAT + 5.F*(float)lat;
    for (lon = 0; lon < NLON; lon++)
-      lons[lon] = START_LON + 5.f*(float)lon;
+      lons[lon] = START_LON + 5.F*(float)lon;
 
    for (lvl = 0; lvl < NLVL; lvl++)
       for (lat = 0; lat < NLAT; lat++)

examples/C/sfc_pres_temp_rd.c

@@ -140,22 +140,22 @@ main()
       them and check them. */
    if ((retval = nc_get_att_text(ncid, lat_varid, UNITS, lat_units_in)))
       ERR(retval);
-   if (strncmp(lat_units_in, LAT_UNITS, strlen(LAT_UNITS)))
+   if (strncmp(lat_units_in, LAT_UNITS, strlen(LAT_UNITS)) != 0)
       return 2;
 
    if ((retval = nc_get_att_text(ncid, lon_varid, UNITS, lon_units_in)))
       ERR(retval);
-   if (strncmp(lon_units_in, LON_UNITS, strlen(LON_UNITS)))
+   if (strncmp(lon_units_in, LON_UNITS, strlen(LON_UNITS)) != 0)
       return 2;
 
    if ((retval = nc_get_att_text(ncid, pres_varid, UNITS, pres_units_in)))
       ERR(retval);
-   if (strncmp(pres_units_in, PRES_UNITS, strlen(PRES_UNITS)))
+   if (strncmp(pres_units_in, PRES_UNITS, strlen(PRES_UNITS)) != 0)
       return 2;
 
    if ((retval = nc_get_att_text(ncid, temp_varid, UNITS, temp_units_in)))
       ERR(retval);
-   if (strncmp(temp_units_in, TEMP_UNITS, strlen(TEMP_UNITS))) return 2;
+   if (strncmp(temp_units_in, TEMP_UNITS, strlen(TEMP_UNITS)) != 0) return 2;
 
    /* Close the file. */
    if ((retval = nc_close(ncid)))

examples/C/sfc_pres_temp_wr.c

@@ -78,9 +78,9 @@ main()
     * would have some real data to write, for example, model
     * output. */
    for (lat = 0; lat < NLAT; lat++)
-      lats[lat] = START_LAT + 5.f*(float)lat;
+      lats[lat] = START_LAT + 5.F*(float)lat;
    for (lon = 0; lon < NLON; lon++)
-      lons[lon] = START_LON + 5.f*(float)lon;
+      lons[lon] = START_LON + 5.F*(float)lon;
 
    for (lat = 0; lat < NLAT; lat++)
       for (lon = 0; lon < NLON; lon++)

libdap2/constraints.c

@@ -12,7 +12,6 @@
 static void completesegments(NClist* fullpath, NClist* segments);
 static NCerror qualifyprojectionnames(DCEprojection* proj);
 static NCerror qualifyprojectionsizes(DCEprojection* proj);
-static NCerror qualifyprojectionnames(DCEprojection* proj);
 static NCerror matchpartialname(NClist* nodes, NClist* segments, CDFnode** nodep);
 static int matchsuffix(NClist* matchpath, NClist* segments);
 static int iscontainer(CDFnode* node);

libdap2/daputil.c

@@ -631,7 +631,6 @@ normal:	    *s++ = *t++;
 	}
     }
     *s = '\0';
-    return;
 }
 
 

libdap4/d4util.c

@@ -15,8 +15,6 @@
 #include <io.h>
 #endif
 
-extern int mkstemp(char *template);
-
 #define LBRACKET '['
 #define RBRACKET ']'
 

libdispatch/daux.c

@@ -311,7 +311,7 @@ computefieldinfo(struct NCAUX_CMPD* cmpd)
 #define LBRACK '['
 #define RBRACK ']'
 
-static int gettype(const int q0, const int q1, int* unsignedp);
+static int gettype(int q0, int q1, int* unsignedp);
 
 /* Look at q0 and q1) to determine type */
 static int

libdispatch/dcopy.c

@@ -77,7 +77,7 @@ NC_compare_nc_types(int ncid1, int typeid1, int ncid2, int typeid2, int *equalp)
 	 return ret;
 
       /* Check the obvious. */
-      if(size1 != size2 || class1 != class2 || strcmp(name1,name2))
+      if(size1 != size2 || class1 != class2 || strcmp(name1,name2) != 0)
 	 return NC_NOERR;
 
       /* Check user-defined types in detail. */
@@ -109,7 +109,7 @@ NC_compare_nc_types(int ncid1, int typeid1, int ncid2, int typeid2, int *equalp)
 					     value1)) ||
 		   (ret = nc_inq_enum_member(ncid2, typeid2, i, name2,
 					     value2)) ||
-		   strcmp(name1, name2) || memcmp(value1, value2, size1))
+		   strcmp(name1, name2) != 0 || memcmp(value1, value2, size1) != 0)
 	       {
 		  free(value1);
 		  free(value2);

libdispatch/dfile.c

@@ -45,8 +45,6 @@
 #endif
 
 
-extern int NC_initialized; /**< True when dispatch table is initialized. */
-
 /* User-defined formats. */
 NC_Dispatch *UDF0_dispatch_table = NULL;
 char UDF0_magic_number[NC_MAX_MAGIC_NUMBER_LEN + 1] = "";

libdispatch/dhttp.c

@@ -516,7 +516,6 @@ trim(char* s)
     /* Ok, overwrite any leading whitespace */
     for(q=s;*p;) {*q++ = *p++;}
     *q = '\0';
-    return;
 }
 
 static size_t

libdispatch/dinfermodel.c

@@ -1387,7 +1387,9 @@ openmagic(struct MagicFile* file)
 		file->filelen = (long long)size;
 #endif
 	}
-        rewind(file->fp);
+        int retval2 = fseek(file->fp, 0L, SEEK_SET);        
+	    if(retval2 != 0)
+		{status = errno; goto done;}
     }
 done:
     return check(status);

libdispatch/dinstance.c

@@ -235,7 +235,7 @@ nc_copy_data_all(int ncid, nc_type xtype, const void* memory, size_t count, void
 
     /* allocate the top-level */
     if(count > 0) {
-        if((copy = calloc(xsize,count))==NULL)
+        if((copy = calloc(count,xsize))==NULL)
 	    {stat = NC_ENOMEM; goto done;}
     }
     stat = nc_copy_data(ncid,xtype,memory,count,copy);

libdispatch/dinstance_intern.c

@@ -567,7 +567,7 @@ NC_copy_data_all(NC* nc, nc_type xtype, const void* memory, size_t count, void**
 
     if(xtype <= NC_STRING && count > 0) {
         xsize = NC_atomictypelen(xtype);
-        if((copy = calloc(xsize,count))==NULL) {stat = NC_ENOMEM; goto done;}
+        if((copy = calloc(count,xsize))==NULL) {stat = NC_ENOMEM; goto done;}
 	if(xtype < NC_STRING) /* fixed-size atomic type */
    	    memcpy(copy,memory,xsize*count);
 	else { /* string type */
@@ -589,7 +589,7 @@ NC_copy_data_all(NC* nc, nc_type xtype, const void* memory, size_t count, void**
         xsize = utype->size;
         /* allocate the top-level */
         if(count > 0) {
-            if((copy = calloc(xsize,count))==NULL) {stat = NC_ENOMEM; goto done;}
+            if((copy = calloc(count,xsize))==NULL) {stat = NC_ENOMEM; goto done;}
         }
         if((stat = NC_copy_data(nc,xtype,memory,count,copy)))
             (void)NC_reclaim_data_all(nc,xtype,copy,count);

libdispatch/ncjson.c

@@ -117,7 +117,7 @@ static int NCJcloneDict(const NCjson* dict, NCjson** clonep);
 static int NCJunparseR(const NCjson* json, NCJbuf* buf, unsigned flags);
 static int bytesappendquoted(NCJbuf* buf, const char* s);
 static int bytesappend(NCJbuf* buf, const char* s);
-static int bytesappendc(NCJbuf* bufp, const char c);
+static int bytesappendc(NCJbuf* bufp, char c);
 
 /* Hide everything for plugins */
 #ifdef NETCDF_JSON_H