Getting Errors While Compiling

Error while compiling in gcc

Your declarations violate the following rule

3.3.7 Class scope [basic.scope.class]

1 The following rules describe the scope of names declared in classes.

...

2) A name N used in a
class S shall refer to the same declaration in its context and when
re-evaluated in the completed scope of S. No diagnostic is required
for a violation of this rule.

At the point of vector declaration name rv refers to a type struct rv. But when reevaluated in the scope of complete class rvs it, refers to class member rvs::rv. Such inconsistency is an error in C++.

A similar error is illustrated by an example in the standard

enum { i = 1 };

class X {
  char v[i]; // error: i refers to ::i
             // but when reevaluated is X::i
  ...
  enum { i = 2 };
};

As @Ben Voigt stated in the comment, if you explicitly resolve the conflict between rv as struct rv and rv as rvs::rv, the error will go away. You can do it by either using elaborate type specifier struct rv or by specifying scope explicitly ::rv.

Note that this is one of those errors which are not guaranteed/required to be caught by the compiler.

I am getting this error while compiling this code Time Limit Exceeded Your program took more time than expected.

Replace

for i in range(2, number):

with

for i in range(2, (number/2)+1):

Also there is no use of break in this code so remove that as well.

Getting errors when compiling code using makefile. Works using console

Well, you are using .C extension when compiling with the Makefile, so the compiler is interpreting the file as a C++ source file and in C++, not having a prototype is an error (and only a warning in C) Just rewrite the line

$(Application_Source_Files_Objecs) : %.O: %.C

to

$(Application_Source_Files_Objecs) : %.o: %.c

and try again (and don't use an Operating System that doesn't distinguish case of letters :) <--- this was a joke, don't flame, please)

EDIT

Please, do the same with all the lines that specify .C and .O files also to .c and .o instead. The operating system doesn't bother with the case of characters, but make(1) and gcc(1) do.

Getting tons of errors when compiling a C program

The problem is in the command line: gcc -Wall -o -g ink ink.c

The -o argument must be followed by the name of the output file, so -g is used for that, and gcc sees ink (the executable produced by a previous command) as a binary module to link along with the object module compiled from ink.c and the C library, hence all the duplicate internal symbols.

Use this command:

gcc -Wall -g -o ink ink.c

Note also these problems in your code:

• relying on the contents of buff after the last call to fgets() is incorrect, especially if the file happens to be empty. You should instead convert each and every line successfully read and use the last conversion.

• you must call fseek(fp1, 0L, SEEK_CUR) before switching from reading the file to writing to it.

• char temp[10]; is not large enough to convert all possible int values. You should make the array larger and use snprintf for safety.

Error while compiling Angular Project

I think this is because they are attempting to import a .css file into a .scss file inside the main.scss file. It seems like they have followed the guide here

You can remove this reference from main.scss

@import '~@angular/material/prebuilt-themes/indigo-pink.css';

and add it under the styles attribute in the angular-cli.json like:

"styles": [
    "styles/main.scss",
    "../node_modules/@angular/material/prebuilt-themes/indigo-pink.css"
]

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