Switch from strtod to std::from_chars for performance

common/drawing_sheet/drawing_sheet_parser.cpp

@@ -23,6 +23,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
  */
 
+#include <charconv>
 #include <wx/ffile.h>
 #include <wx/log.h>
 #include <eda_item.h>
@@ -848,9 +849,20 @@ double DRAWING_SHEET_PARSER::parseDouble()
     if( token != T_NUMBER )
         Expecting( T_NUMBER );
 
-    double val = strtod( CurText(), NULL );
+    double                 dval{};
+    const std::string&     str = CurStr();
+    std::from_chars_result res = std::from_chars( str.data(), str.data() + str.size(), dval );
 
-    return val;
+    if( res.ec != std::errc() )
+    {
+        wxString error;
+        error.Printf( _( "Invalid floating point number in\nfile: '%s'\nline: %d\noffset: %d" ),
+                      CurSource(), CurLineNumber(), CurOffset() );
+
+        THROW_IO_ERROR( error );
+    }
+
+    return dval;
 }
 
 // defaultDrawingSheet is the default drawing sheet using the S expr.

common/stroke_params.cpp

@@ -16,9 +16,9 @@
  * You should have received a copy of the GNU General Public License along
  * with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
 #include <macros.h>
 #include <base_units.h>
+#include <charconv>>
 #include <string_utils.h>
 #include <eda_rect.h>
 #include <render_settings.h>
@@ -316,9 +316,20 @@ double STROKE_PARAMS_PARSER::parseDouble( const char* aText )
     if( token != T_NUMBER )
         Expecting( aText );
 
-    double val = strtod( CurText(), NULL );
+    double                 dval{};
+    const std::string&     str = CurStr();
+    std::from_chars_result res = std::from_chars( str.data(), str.data() + str.size(), dval );
+
+    if( res.ec != std::errc() )
+    {
+        wxString error;
+        error.Printf( _( "Invalid floating point number in\nfile: '%s'\nline: %d\noffset: %d" ),
+                      CurSource(), CurLineNumber(), CurOffset() );
+
+        THROW_IO_ERROR( error );
+    }
 
-    return val;
+    return dval;
 }
 
 

eeschema/sch_plugins/kicad/sch_sexpr_parser.cpp

@@ -27,6 +27,8 @@
 
 // For some reason wxWidgets is built with wxUSE_BASE64 unset so expose the wxWidgets
 // base64 code.
+#include <charconv>
+
 #define wxUSE_BASE64 1
 #include <wx/base64.h>
 #include <wx/mstream.h>
@@ -422,8 +424,6 @@ LIB_ITEM* SCH_SEXPR_PARSER::ParseDrawItem()
 
 double SCH_SEXPR_PARSER::parseDouble()
 {
-    char* tmp;
-
     // In case the file got saved with the wrong locale.
     if( strchr( CurText(), ',' ) != nullptr )
     {
@@ -431,23 +431,17 @@ double SCH_SEXPR_PARSER::parseDouble()
                            CurLine(), CurLineNumber(), CurOffset() );
     }
 
-    errno = 0;
+    double                 dval{};
+    const std::string&     str = CurStr();
+    std::from_chars_result res = std::from_chars( str.data(), str.data() + str.size(), dval );
 
-    double fval = strtod( CurText(), &tmp );
-
-    if( errno )
+    if( res.ec != std::errc() )
     {
         THROW_PARSE_ERROR( _( "Invalid floating point number" ), CurSource(), CurLine(),
                            CurLineNumber(), CurOffset() );
     }
 
-    if( CurText() == tmp )
-    {
-        THROW_PARSE_ERROR( _( "Missing floating point number" ), CurSource(), CurLine(),
-                           CurLineNumber(), CurOffset() );
-    }
-
-    return fval;
+    return dval;
 }
 
 

pcbnew/pcb_plot_params.cpp

@@ -22,6 +22,7 @@
  */
 
 #include <board_design_settings.h>
+#include <charconv>
 #include <convert_to_biu.h>
 #include <layer_ids.h>
 #include <macros.h>
@@ -659,9 +660,20 @@ double PCB_PLOT_PARAMS_PARSER::parseDouble()
     if( token != T_NUMBER )
         Expecting( T_NUMBER );
 
-    double val = strtod( CurText(), nullptr );
+    double                 dval{};
+    const std::string&     str = CurStr();
+    std::from_chars_result res = std::from_chars( str.data(), str.data() + str.size(), dval );
 
-    return val;
+    if( res.ec != std::errc() )
+    {
+        wxString error;
+        error.Printf( _( "Invalid floating point number in\nfile: '%s'\nline: %d\noffset: %d" ),
+                      CurSource(), CurLineNumber(), CurOffset() );
+
+        THROW_IO_ERROR( error );
+    }
+
+    return dval;
 }
 
 

pcbnew/plugins/kicad/pcb_parser.cpp

@@ -28,6 +28,7 @@
  */
 
 #include <cerrno>
+#include <charconv>
 #include <confirm.h>
 #include <macros.h>
 #include <title_block.h>
@@ -176,13 +177,11 @@ void PCB_PARSER::pushValueIntoMap( int aIndex, int aValue )
 
 double PCB_PARSER::parseDouble()
 {
-    char* tmp;
+    double                 dval{};
+    const std::string&     str = CurStr();
+    std::from_chars_result res = std::from_chars( str.data(), str.data() + str.size(), dval );
 
-    errno = 0;
-
-    double fval = strtod( CurText(), &tmp );
-
-    if( errno )
+    if( res.ec != std::errc() )
     {
         wxString error;
         error.Printf( _( "Invalid floating point number in\nfile: '%s'\nline: %d\noffset: %d" ),
@@ -191,16 +190,7 @@ double PCB_PARSER::parseDouble()
         THROW_IO_ERROR( error );
     }
 
-    if( CurText() == tmp )
-    {
-        wxString error;
-        error.Printf( _( "Missing floating point number in\nfile: '%s'\nline: %d\noffset: %d" ),
-                      CurSource(), CurLineNumber(), CurOffset() );
-
-        THROW_IO_ERROR( error );
-    }
-
-    return fval;
+    return dval;
 }