Error Invalid Type Argument Of Unary Have Nt

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Invalid Type Argument Of Unary ‘*’ (have ‘int’) C

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Invalid Type Argument Of Unary '*' (have 'char')

Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up error: invalid type argument of unary '*' invalid type argument of unary ‘*’ (have ‘float’) up vote 2 down vote favorite I don't understand these errors can someone explain? error: invalid type argument of unary '' (have 'double') error: invalid type argument of unary '' (have 'double') error: invalid type argument of unary '*' (have 'double') double getMedian(double *array, int *hours){ if (*hours <= 0) return 0; if (*hours % 2) return (float)*array[(*hours + 1) / 2]; else{int pos = *hours invalid type argument of unary '*' (have 'float') / 2; return (float)(*array[pos] + *array[pos + 1]) / 2;}} c++ arrays pointers share|improve this question edited Apr 14 at 11:19 Slothworks 468514 asked Apr 7 '14 at 3:10 user3502479 2525 add a comment| 3 Answers 3 active oldest votes up vote 4 down vote accepted You are already dereferencing array with the [] operator. What you want is: double getMedian(double *array, int *hours){ if (*hours <= 0) return 0; if (*hours % 2) return (float)array[(*hours + 1) / 2]; else{int pos = *hours / 2; return (float)(array[pos] + array[pos + 1]) / 2;}} Note that writing x[y] is shorthand for *(x + (y)). In your code, you have essentially have the equivalent of **array. share|improve this answer answered Apr 7 '14 at 3:19 ppl 1,004516 add a comment| up vote 1 down vote When you use the [] operator on the arrays or pointers, you don't have to dereference them again to get the value. you could just say, if (*hours % 2) return (float)array[(*hours + 1) / 2]; and return (float)(array[pos] + (array[pos + 1]) / 2); share|improve this answer answered Apr 7 '14 at 3:19 sajas 661521 add a comment| up vote 0 down v

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Invalid Type Argument Of Unary '*' (have 'double')

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Invalid Type Argument Of Unary ‘*’ (have ‘char’)

is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up What is wrong with my code? Invalid type argument of unary. Double http://stackoverflow.com/questions/22902985/error-invalid-type-argument-of-unary pointers up vote 1 down vote favorite I just started to learn C and I am getting various errors with pointers. I cannot really find what is the problem with code below. I wasted like a day to resolve this issue and still nothing. It says Invalid type argument of unary. I suspect the reason is in double pointers. I tried couple of ways of solving it. I tried to http://stackoverflow.com/questions/24807497/what-is-wrong-with-my-code-invalid-type-argument-of-unary-double-pointers put brackets for double pointer before making a comparison and similar things. But nothing helps. What is really wrong here? I will appreciate your help. #include #include int isEqual(char *line, char *word){ while(**line == **word && **line && **word){ (*line)++; (*word)++; } if(**line == **word == '\0') return 1; else return 0; } int main(){ int i; int argc = 2; char **lines; *lines = "sort"; (*lines)++; *lines = "revs"; if(isEqual(*lines, "sort")){ printf("Equal"); }else{ printf("Not equal"); } } return 0; } c pointers share|improve this question asked Jul 17 '14 at 15:17 MaharajaX 5481412 Providing the complete error message would be helpful, since it undoubtedly says which line the error is on and probably says which unary operation is complaining. –keshlam Jul 17 '14 at 15:22 add a comment| 3 Answers 3 active oldest votes up vote 3 down vote accepted Variable lines were not initialized char **lines; So the next statement is already invalid *lines = "sort"; Also in the function this statement while(**line == **word && **line && **word){ is also invalid because you may not two times apply dereferencing to an object defined as char * Function IsEqual is in whole invalid and uses invalid C constructions. The

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Sign in Pricing Blog Support Search GitHub This repository Watch 26 Star 64 Fork 18 clMathLibraries/clRNG Code Issues 3 Pull requests 1 Projects 0 Pulse Graphs New issue Compiler Errors #2 Closed rkaehlert opened this Issue Jun 10, 2015 · 21 comments Projects None yet Labels invalid Milestone No milestone Assignees No one assigned 5 participants rkaehlert commented Jun 10, 2015 I've built and installed the library as described here on github. My Problem is getting the following errors in the clBuildProgram method when reading the kernel. This happens even when i set up and run the exmaple code. What ive dine wrong? Thanks a lot. In file included from :2: In file included from C:\Users\robin\Desktop\clRNG_CPack_Packages\win64\ZIP\clR NG-1.0.0-Windows-x64\cl\include\mrg31k3p.clh:44: C:\Users\robin\Desktop\clRNG_CPack_Packages\win64\ZIP\clRNG-1.0.0-Windows-x64\c l\include\clRNG.clh:50:9: error: use of type 'double' requires cl_khr_fp64 exten sion to be enabled typedef double cl_double; ^ C:\Users\robin\Desktop\clRNG_CPack_Packages\win64\ZIP\clRNG-1.0.0-Windows-x64\c l\include\clRNG.clh:77:34: error: variadic macros not supported in OpenCL #define clrngSetErrorString(err, ...) (err) ^ In file included from :2: C:\Users\robin\Desktop\clRNG_CPack_Packages\win64\ZIP\clRNG-1.0.0-Windows-x64\c l\include\mrg31k3p.clh:113:9: error: invalid argument type 'attribute((addre ss_space(16776963))) clrngMrg31k3pStream *' (aka 'attribute((address_space(1 6776963))) struct clrngMrg31k3pStream_ *') to unary expression if (!destStreams) ^~~~~~~~~~~~ C:\Users\robin\Desktop\clRNG_CPack_Packages\win64\ZIP\clRNG-1.0.0-Windows-x64\c l\include\mrg31k3p.clh:114:9: warning: implicit declaration of function 'clrngSe tErrorString' is invalid in C99 return clrngSetErrorString(CLRNG_INVALID_VALUE, "clrngMrg31k3pCopyOverSt reamsFromGlobal(): destStreams cannot be NULL"); ^ C:\Users\robin\Desktop\clRNG_CPack_Packages\win64\ZIP\clRNG-1.0.0-Windows-x64\c l\include\mrg31k3p.clh:115:9: error: invalid argument type 'const global clrng Mrg31k3pHostStream *' (aka 'const __global struct clrngMrg31k3pHostStream_ *') t o unary expression if (!srcStreams) ^~~~~~~~~~~ C:\Users\robin\Desktop\clRNG_CPack_Packages\win64\ZIP\clRNG-1.0.0-Windows-x64\c l\include\mrg31k3p.clh:132:9: error: invalid argument type '__global clrngMrg31k 3pHostStream *' (aka '__global struct clrngMrg31k3pHostStrea