{"record":{"id":"f898fcae474c6cc9","repo":"Yalantis/uCrop","slug":"cimg-appname-math-parser-cimg-s-function-f898fc","errorCode":null,"errorMessage":"\"[\" cimg_appname \"_math_parser] CImg<%s>: Function 'ellipse()': Invalid arguments '#%u%s%s'. \"","messagePattern":"\"\\[\" cimg_appname \"_math_parser\\] CImg<(.+?)>: Function 'ellipse\\(\\)': Invalid arguments '#%u(.+?)(.+?)'\\. \"","errorType":"exception","errorClass":"CImgArgumentException","httpStatus":null,"severity":"error","filePath":"ucrop/src/main/jni/CImg.h","lineNumber":26713,"sourceCode":"                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n        if (!is_invalid_arguments) {\n          if (is_outlined) img.draw_ellipse(x0,y0,r1,r2,angle,color._data,opacity,pattern);\n          else img.draw_ellipse(x0,y0,r1,r2,angle,color._data,opacity);\n        } else {\n          CImg<doubleT> args(i_end - 4);\n          cimg_forX(args,k) args[k] = _mp_arg(4 + k);\n          if (ind==~0U)\n            throw CImgArgumentException(\"[\" cimg_appname \"_math_parser] CImg<%s>: Function 'ellipse()': \"\n                                        \"Invalid arguments '%s'. \",\n                                        mp.imgin.pixel_type(),args.value_string()._data);\n          else\n            throw CImgArgumentException(\"[\" cimg_appname \"_math_parser] CImg<%s>: Function 'ellipse()': \"\n                                        \"Invalid arguments '#%u%s%s'. \",\n                                        mp.imgin.pixel_type(),ind,args._width?\",\":\"\",args.value_string()._data);\n        }\n        return cimg::type<double>::nan();\n      }\n\n      static double mp_epoch(_cimg_math_parser& mp) {\n        unsigned int\n          year = (unsigned int)mp.opcode[2]==~0U?~0U:(unsigned int)std::max(_mp_arg(2),1900.),\n          month = (unsigned int)mp.opcode[3]==~0U?~0U:(unsigned int)cimg::cut(_mp_arg(3),1.,12.),\n          day = (unsigned int)mp.opcode[4]==~0U?~0U:(unsigned int)cimg::cut(_mp_arg(4),1.,31.),\n          hour = (unsigned int)mp.opcode[5]==~0U?~0U:(unsigned int)cimg::cut(_mp_arg(5),0.,23.),\n          minute = (unsigned int)mp.opcode[6]==~0U?~0U:(unsigned int)cimg::cut(_mp_arg(6),0.,59.),\n          second = (unsigned int)mp.opcode[7]==~0U?~0U:(unsigned int)cimg::cut(_mp_arg(7),0.,60.);\n        if (year==~0U && month==~0U && day==~0U &&\n            hour==~0U && minute==~0U && second==~0U) // No argument -> current date\n          return (double)cimg::epoch(cimg::date(0),cimg::date(1),cimg::date(2),\n                                     cimg::date(4),cimg::date(5),cimg::date(6));","sourceCodeStart":26695,"sourceCodeEnd":26731,"githubUrl":"https://github.com/Yalantis/uCrop/blob/f788b534b48c144edf786c8cddbf0e029e637804/ucrop/src/main/jni/CImg.h#L26695-L26731","documentation":"Same dispatch failure as the plain-arguments variant of ellipse(), but here an image selector '#ind' was provided. The parser collected the trailing arguments into a vector, failed to match a supported ellipse() overload for that image, and reports the arguments after the '#ind,' prefix.","triggerScenarios":"Calling ellipse(#ind,...) with an argument count/types that match no supported overload (e.g. wrong radii/angle/color arity) for image ind.","commonSituations":"Script typos in argument lists; version drift between G'MIC/CImg releases changing ellipse() overloads; accidentally passing extra positional values.","solutions":["Match the documented ellipse(#ind,x,y,r1,r2,angle,color[,opacity[,pattern]]) argument list exactly.","Remove unexpected extra arguments or add missing ones (the message prints the offending argument vector).","Verify against the CImg version in use; adjust the expression after upgrades.","If arguments are dynamic, assert their count before building the call."],"exampleFix":"// before: extra stray argument\n ellipse(#0,x,y,r1,r2,angle,opacity,extra)\n// after\n ellipse(#0,x,y,r1,r2,angle,opacity)","handlingStrategy":"validation","validationCode":"// Validate the argument list following '#ind,' before evaluation\nfunction checkEllipseIndArgs(ind, args) { if (![5,6,7,8].includes(args.length)) throw new Error('ellipse(#' + ind + ') invalid arity: ' + args.length); }","typeGuard":"function isValidEllipseCall(ind, args) { return Number.isInteger(ind) && ind >= 0 && [5,6,7,8].includes(args.length); }","tryCatchPattern":"try { evalMath(expr); } catch (e) { if (String(e).includes(\"Function 'ellipse()'\") && String(e).includes('#')) { console.error('ellipse() with selector rejected args:', e.message); } else throw e; }","preventionTips":["Keep ellipse(#ind,x,y,r1,r2,angle,color[,opacity[,pattern]]) arity exact","Generate such calls from a helper instead of hand-written strings","Diff expressions when porting between CImg versions"],"tags":["cimg","math-parser","ellipse","argument-count"],"backgroundTag":"missing-required-argument","analyzedSha":"f788b534b48c144edf786c8cddbf0e029e637804","analyzedAt":"2026-09-08T08:36:04.887Z","contentChangedAt":"2026-09-08T08:36:04.887Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}