Suppress cppcheck exceptions

Adding exception to the cppcheck issues that are flagged in the existing
codebase. In this way it is easier to monitor comming changes.

Author: yngve793

lib/experimental/segyio/segyio.hpp

@@ -426,7 +426,7 @@ class basic_file : public Traits< basic_file< Traits... > >... {
     explicit
     basic_file( const segyio::path& path,
                 const segyio::config& cfg = config() ) noexcept(false)
-    : Traits< basic_file >( {} ) ... {
+    : Traits< basic_file >( {} ) ... { // cppcheck-suppress internalAstError
 
         this->consider( path );
 

lib/src/segy.c

@@ -821,7 +821,7 @@ static int memread( void* dest, const segy_file* fp, const void* src, size_t n )
     return SEGY_OK;
 }
 
-static int memwrite( segy_file* fp, void* dest, const void* src, size_t n ) {
+static int memwrite( segy_file* fp, void* dest, const void* src, size_t n ) { // cppcheck-suppress constParameterPointer
     const void* begin = fp->addr;
     const void* end = (const char*)fp->addr + fp->fsize;
     const void* destend = (const char*)dest + n;
@@ -1897,7 +1897,7 @@ int segy_readsubtr( segy_file* fp,
      */
     void* tracebuf = rangebuf ? rangebuf : malloc( elems * elemsize );
 
-    const int readc = (int) fread( tracebuf, elemsize, elems, fp->fp );
+    const int readc = (int) fread( tracebuf, elemsize, elems, fp->fp ); // cppcheck-suppress nullPointerOutOfMemory
     if( readc != elems ) {
         if( !rangebuf ) free( tracebuf );
         return SEGY_FREAD_ERROR;
@@ -2013,7 +2013,7 @@ int segy_writesubtr( segy_file* fp,
      */
     if( !fp->addr && (step == 1 || step == -1) && fp->lsb ) {
         void* tracebuf = rangebuf ? rangebuf : malloc( elems * elemsize );
-        memcpy( tracebuf, buf, elemsize * elems );
+        memcpy( tracebuf, buf, elemsize * elems ); // cppcheck-suppress nullPointerOutOfMemory
 
         if (step == -1) reverse(tracebuf, elems, elemsize);
         if (fp->elemsize == 8) bswap64vec(tracebuf, elems);
@@ -2061,7 +2061,7 @@ int segy_writesubtr( segy_file* fp,
     void* tracebuf = rangebuf ? rangebuf : malloc( elems * elemsize );
 
     // like in readsubtr, read a larger chunk and then step through that
-    const int readc = (int) fread( tracebuf, elemsize, elems, fp->fp );
+    const int readc = (int) fread( tracebuf, elemsize, elems, fp->fp ); // cppcheck-suppress nullPointerOutOfMemory
     if( readc != elems ) { free( tracebuf ); return SEGY_FREAD_ERROR; }
     /* rewind, because fread advances the file pointer */
     err = fseek( fp->fp, -(elems * elemsize), SEEK_CUR );

lib/test/segy.cpp

@@ -1762,7 +1762,7 @@ SCENARIO( "reading a 2-byte int file", "[c.segy][2-byte]" ) {
             CHECK( trace_bsize == 75 * 2 );
         }
 
-        WHEN( "the format is valid" ) THEN( "setting format succeeds" ) {
+        WHEN( "the format is valid" ) THEN( "setting format succeeds" ) { // cppcheck-suppress unknownMacro
                 Err err = segy_set_format( fp, format );
                 CHECK( err == Err::ok() );
         }