api/pdfrenderer.cpp: Fix compiler warning

Compiler warning from clang: src/api/pdfrenderer.cpp:848:28: warning: cast from 'const char *' to 'char *' drops const qualifier [-Wcast-qual] Signed-off-by: Stefan Weil <sw@weilnetz.de>
tesseract-ocr · Sep 3, 2018 · 9f8ed31 · 9f8ed31
1 parent 08e25d4
commit 9f8ed31
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diff --git a/src/api/pdfrenderer.cpp b/src/api/pdfrenderer.cpp
@@ -696,7 +696,7 @@ bool TessPDFRenderer::BeginDocumentHandler() {
 }
 
 bool TessPDFRenderer::imageToPDFObj(Pix *pix,
-                                    char *filename,
+                                    const char* filename,
                                     long int objnum,
                                     char **pdf_object,
                                     long int *pdf_object_size) {
@@ -845,7 +845,7 @@ bool TessPDFRenderer::AddImageHandler(TessBaseAPI* api) {
   char buf[kBasicBufSize];
   char buf2[kBasicBufSize];
   Pix *pix = api->GetInputImage();
-  char *filename = (char *)api->GetInputName();
+  const char* filename = reinterpret_cast<const char*>(api->GetInputName());
   int ppi = api->GetSourceYResolution();
   if (!pix || ppi <= 0)
     return false;

diff --git a/src/api/renderer.h b/src/api/renderer.h
@@ -212,8 +212,8 @@ class TESS_API TessPDFRenderer : public TessResultRenderer {
   // Create the /Contents object for an entire page.
   char* GetPDFTextObjects(TessBaseAPI* api, double width, double height);
   // Turn an image into a PDF object. Only transcode if we have to.
-  static bool imageToPDFObj(Pix *pix, char *filename, long int objnum,
-                          char **pdf_object, long int *pdf_object_size);
+  static bool imageToPDFObj(Pix* pix, const char* filename, long int objnum,
+                          char** pdf_object, long int* pdf_object_size);
 };