{"record":{"id":"b12936667020cf2d","repo":"Yalantis/uCrop","slug":"cimg-appname-math-parser-cimg-s-s-s-i","errorCode":null,"errorMessage":"[\" cimg_appname \"_math_parser] CImg<%s>::%s: %s: Input vector size (%lu values) and its specified geometry (%u,%u,%u,%u) (%lu values) do not match.","messagePattern":"\\[\" cimg_appname \"_math_parser\\] CImg<(.+?)>::(.+?): (.+?): Input vector size \\(%lu values\\) and its specified geometry \\(%u,%u,%u,%u\\) \\(%lu values\\) do not match\\.","errorType":"exception","errorClass":"CImgArgumentException","httpStatus":null,"severity":"error","filePath":"ucrop/src/main/jni/CImg.h","lineNumber":22589,"sourceCode":"              s2 = ++s1; while (s2<se1 && (*s2!=',' || level[s2 - expr._data]!=clevel1)) ++s2;\n              arg4 = compile(s1,s2,depth1,0,block_flags);\n              s1 = ++s2; while (s1<se1 && (*s1!=',' || level[s1 - expr._data]!=clevel1)) ++s1;\n              arg5 = compile(s2,s1,depth1,0,block_flags);\n              arg6 = compile(++s1,se1,depth1,0,block_flags);\n              _cimg_mp_check_type(arg1,1,2,0);\n              _cimg_mp_check_const_scalar(arg2,2,3);\n              _cimg_mp_check_const_scalar(arg3,3,3);\n              _cimg_mp_check_const_scalar(arg4,4,3);\n              _cimg_mp_check_const_scalar(arg5,5,3);\n              p1 = size(arg1);\n              p2 = size(arg6);\n              arg2 = (unsigned int)mem[arg2];\n              arg3 = (unsigned int)mem[arg3];\n              arg4 = (unsigned int)mem[arg4];\n              arg5 = (unsigned int)mem[arg5];\n              if (arg2*arg3*arg4*arg5!=std::max(1U,p1)) {\n                _cimg_mp_strerr;\n                throw CImgArgumentException(\"[\" cimg_appname \"_math_parser] \"\n                                            \"CImg<%s>::%s: %s: Input vector size (%lu values) and its specified \"\n                                            \"geometry (%u,%u,%u,%u) (%lu values) do not match.\",\n                                            pixel_type(),_cimg_mp_calling_function,s_op,\n                                            std::max(p1,1U),arg2,arg3,arg4,arg5,(ulongT)arg2*arg3*arg4*arg5);\n              }\n              pos = vector(arg2*arg3*arg4*arg5);\n              CImg<ulongT>::vector((ulongT)mp_mirror,pos,arg1,arg2,arg3,arg4,arg5,arg6,p2).move_to(code);\n              return_comp = true;\n              _cimg_mp_return(pos);\n            }\n\n            if (!std::strncmp(ss,\"mproj(\",6)) { // Project matrix onto dictionary\n              _cimg_mp_op(\"Function 'mproj()'\");\n              s1 = ss6; while (s1<se1 && (*s1!=',' || level[s1 - expr._data]!=clevel1)) ++s1;\n              arg1 = compile(ss6,s1,depth1,0,block_flags); // S\n              s2 = ++s1; while (s2<se1 && (*s2!=',' || level[s2 - expr._data]!=clevel1)) ++s2;\n              arg2 = compile(s1,s2,depth1,0,block_flags); // ncolS\n              s1 = ++s2; while (s1<se1 && (*s1!=',' || level[s1 - expr._data]!=clevel1)) ++s1;","sourceCodeStart":22571,"sourceCodeEnd":22607,"githubUrl":"https://github.com/Yalantis/uCrop/blob/f788b534b48c144edf786c8cddbf0e029e637804/ucrop/src/main/jni/CImg.h#L22571-L22607","documentation":"The math parser allows assigning an explicit geometry (width,height,depth,spectrum) to a vector. This error is thrown when the product of the four specified dimensions does not equal the actual number of values in the input vector (max(1,p1)), i.e. the declared shape and the data size disagree.","triggerScenarios":"Calling an expression like 'vector(v,w,h,d,s)' or a geometry-specifying op where w*h*d*s != vector length; typical with 'resize(#ind,...)' style ops or explicit vector declarations with wrong dimension values.","commonSituations":"Hardcoded geometry constants left over from an older image size, off-by-one in width/height, or forgetting the spectrum/channel factor (e.g. RGB vs gray).","solutions":["Compute w*h*d*s and compare against the actual vector size; fix the wrong dimension","Use size(#ind) in a debug print to confirm the real element count","Let the parser infer geometry by omitting explicit dims when possible","Reshape the data first (e.g. with 'resize' or 'unroll') so the count matches"],"exampleFix":"// before (12 values declared as 3,4,1,1 = 12? no, declared 3,4,2,1=24)\nV = vector([1,2,3,4,5,6,7,8,9,10,11,12],3,4,2,1)\n// after\nV = vector([1,2,3,4,5,6,7,8,9,10,11,12],3,4,1,1)","handlingStrategy":"validation","validationCode":"w*h*d*s == max(1,size(vec)) || error \"geometry mismatch\"","typeGuard":null,"tryCatchPattern":"try { run(expr) } catch (CImgArgumentException &e) { log(e.what()); }","preventionTips":["Compute geometry product before hardcoding dims","Account for the spectrum/channel dimension","Prefer ops that infer geometry over explicit dims"],"tags":["cimg","math-parser","shape-mismatch"],"backgroundTag":"tensor-shape-mismatch","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"}