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What does C++ language definition say about the extent of the static keyword?
What does the explicit keyword mean?Use 'class' or 'typename' for template parameters?What are the rules about using an underscore in a C++ identifier?When to use static classes in C#The Definitive C++ Book Guide and ListWhat does “static” mean in C?C++11 introduced a standardized memory model. What does it mean? And how is it going to affect C++ programming?Why are static variables considered evil?Why are elementwise additions much faster in separate loops than in a combined loop?The static keyword and its various uses in C++
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In C++, if I have a class:
class Example
static int s_One, s_Two;
...
;
Does the language clearly define that s_Two is also static?
In other words, does the static keyword extent go everywhere the int goes, or can it be like * and only apply to one variable?
c++ static language-lawyer extent
asked 8 hours ago
WilliamKFWilliamKF
16.2k51 gold badges154 silver badges252 bronze badges
add a comment |
In C++, if I have a class:
class Example
static int s_One, s_Two;
...
;
Does the language clearly define that s_Two is also static?
In other words, does the static keyword extent go everywhere the int goes, or can it be like * and only apply to one variable?
c++ static language-lawyer extent
asked 8 hours ago
WilliamKFWilliamKF
16.2k51 gold badges154 silver badges252 bronze badges
This question can be answered by reading the standard. But, why don't you simply remove the ambiguity by declaring each variable on its own?
– Jesper Juhl
8 hours ago
9
@JesperJuhl: Arguably, most answers about C++ can be answered by reading the standard. But the standard is big and sometimes difficult to navigate.
– rodrigo
8 hours ago
@JesperJuhl The answer might also be valuable to other people.
– ruohola
7 hours ago
add a comment |
In C++, if I have a class:
class Example
static int s_One, s_Two;
...
;
Does the language clearly define that s_Two is also static?
In other words, does the static keyword extent go everywhere the int goes, or can it be like * and only apply to one variable?
c++ static language-lawyer extent
asked 8 hours ago
WilliamKFWilliamKF
16.2k51 gold badges154 silver badges252 bronze badges
In C++, if I have a class:
class Example
static int s_One, s_Two;
...
;
Does the language clearly define that s_Two is also static?
In other words, does the static keyword extent go everywhere the int goes, or can it be like * and only apply to one variable?
c++ static language-lawyer extent
c++ static language-lawyer extent
asked 8 hours ago
WilliamKFWilliamKF
16.2k51 gold badges154 silver badges252 bronze badges
asked 8 hours ago
WilliamKFWilliamKF
16.2k51 gold badges154 silver badges252 bronze badges
asked 8 hours ago
WilliamKFWilliamKF
16.2k51 gold badges154 silver badges252 bronze badges
asked 8 hours ago
WilliamKFWilliamKF
16.2k51 gold badges154 silver badges252 bronze badges
asked 8 hours ago
WilliamKFWilliamKF
16.2k51 gold badges154 silver badges252 bronze badges
16.2k51 gold badges154 silver badges252 bronze badges
This question can be answered by reading the standard. But, why don't you simply remove the ambiguity by declaring each variable on its own?
– Jesper Juhl
8 hours ago
9
@JesperJuhl: Arguably, most answers about C++ can be answered by reading the standard. But the standard is big and sometimes difficult to navigate.
– rodrigo
8 hours ago
@JesperJuhl The answer might also be valuable to other people.
– ruohola
7 hours ago
add a comment |
This question can be answered by reading the standard. But, why don't you simply remove the ambiguity by declaring each variable on its own?
– Jesper Juhl
8 hours ago
9
@JesperJuhl: Arguably, most answers about C++ can be answered by reading the standard. But the standard is big and sometimes difficult to navigate.
– rodrigo
8 hours ago
@JesperJuhl The answer might also be valuable to other people.
– ruohola
7 hours ago
This question can be answered by reading the standard. But, why don't you simply remove the ambiguity by declaring each variable on its own?
– Jesper Juhl
8 hours ago
This question can be answered by reading the standard. But, why don't you simply remove the ambiguity by declaring each variable on its own?
– Jesper Juhl
8 hours ago
9
9
@JesperJuhl: Arguably, most answers about C++ can be answered by reading the standard. But the standard is big and sometimes difficult to navigate.
– rodrigo
8 hours ago
@JesperJuhl: Arguably, most answers about C++ can be answered by reading the standard. But the standard is big and sometimes difficult to navigate.
– rodrigo
8 hours ago
@JesperJuhl The answer might also be valuable to other people.
– ruohola
7 hours ago
@JesperJuhl The answer might also be valuable to other people.
– ruohola
7 hours ago
add a comment |
2 Answers
2
active
oldest
votes
Yes, it applies to every name in that declaration:
[dcl.stc]/1:[..] At most one storage-class-specifier shall appear in a given decl-specifier-seq [..] The storage-class-specifier applies to the name declared by each init-declarator in the list [..]
answered 8 hours ago
Lightness Races in OrbitLightness Races in Orbit
310k58 gold badges512 silver badges857 bronze badges
add a comment |
According to the C++ 17 Standard (10 Declarations)
2 A simple-declaration or nodeclspec-function-declaration of the form
attribute-specifier-seqopt decl-specifier-seqopt init-declarator-listopt ;
And (10.1 Specifiers):
1 The specifiers that can be used in a declaration are
decl-specifier:
storage-class-specifier
...
So in this declaration
static int s_One, s_Two;
the decl-specifier-seq contains two decl-specifiers, static (storage class specifier) and int. Thus the storage class specifier static describes the both variables in the init-declarator-list s_One and s_Two.
answered 8 hours ago
Vlad from MoscowVlad from Moscow
148k13 gold badges89 silver badges188 bronze badges
1
That's not enough; this doesn't show that the SCS applies to both, just that is possible.
– Rakete1111
8 hours ago
3
No, it is not. Why do you say it is invalid?
– Doch88
8 hours ago
2
@VladfromMoscow why?
– Henri
8 hours ago
3
@VladfromMoscow How is declaring two separatestaticints invalid syntax?
– Jesper Juhl
8 hours ago
1
@Doch88 I did not see that there is a semicolon instead of comma.:)
– Vlad from Moscow
8 hours ago
|
show 3 more comments
Your Answer
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Yes, it applies to every name in that declaration:
[dcl.stc]/1:[..] At most one storage-class-specifier shall appear in a given decl-specifier-seq [..] The storage-class-specifier applies to the name declared by each init-declarator in the list [..]
answered 8 hours ago
Lightness Races in OrbitLightness Races in Orbit
310k58 gold badges512 silver badges857 bronze badges
add a comment |
Yes, it applies to every name in that declaration:
[dcl.stc]/1:[..] At most one storage-class-specifier shall appear in a given decl-specifier-seq [..] The storage-class-specifier applies to the name declared by each init-declarator in the list [..]
answered 8 hours ago
Lightness Races in OrbitLightness Races in Orbit
310k58 gold badges512 silver badges857 bronze badges
add a comment |
Yes, it applies to every name in that declaration:
[dcl.stc]/1:[..] At most one storage-class-specifier shall appear in a given decl-specifier-seq [..] The storage-class-specifier applies to the name declared by each init-declarator in the list [..]
answered 8 hours ago
Lightness Races in OrbitLightness Races in Orbit
310k58 gold badges512 silver badges857 bronze badges
Yes, it applies to every name in that declaration:
[dcl.stc]/1:[..] At most one storage-class-specifier shall appear in a given decl-specifier-seq [..] The storage-class-specifier applies to the name declared by each init-declarator in the list [..]
answered 8 hours ago
Lightness Races in OrbitLightness Races in Orbit
310k58 gold badges512 silver badges857 bronze badges
answered 8 hours ago
Lightness Races in OrbitLightness Races in Orbit
310k58 gold badges512 silver badges857 bronze badges
answered 8 hours ago
Lightness Races in OrbitLightness Races in Orbit
310k58 gold badges512 silver badges857 bronze badges
answered 8 hours ago
Lightness Races in OrbitLightness Races in Orbit
310k58 gold badges512 silver badges857 bronze badges
310k58 gold badges512 silver badges857 bronze badges
add a comment |
add a comment |
According to the C++ 17 Standard (10 Declarations)
2 A simple-declaration or nodeclspec-function-declaration of the form
attribute-specifier-seqopt decl-specifier-seqopt init-declarator-listopt ;
And (10.1 Specifiers):
1 The specifiers that can be used in a declaration are
decl-specifier:
storage-class-specifier
...
So in this declaration
static int s_One, s_Two;
the decl-specifier-seq contains two decl-specifiers, static (storage class specifier) and int. Thus the storage class specifier static describes the both variables in the init-declarator-list s_One and s_Two.
answered 8 hours ago
Vlad from MoscowVlad from Moscow
148k13 gold badges89 silver badges188 bronze badges
1
That's not enough; this doesn't show that the SCS applies to both, just that is possible.
– Rakete1111
8 hours ago
3
No, it is not. Why do you say it is invalid?
– Doch88
8 hours ago
2
@VladfromMoscow why?
– Henri
8 hours ago
3
@VladfromMoscow How is declaring two separatestaticints invalid syntax?
– Jesper Juhl
8 hours ago
1
@Doch88 I did not see that there is a semicolon instead of comma.:)
– Vlad from Moscow
8 hours ago
|
show 3 more comments
According to the C++ 17 Standard (10 Declarations)
2 A simple-declaration or nodeclspec-function-declaration of the form
attribute-specifier-seqopt decl-specifier-seqopt init-declarator-listopt ;
And (10.1 Specifiers):
1 The specifiers that can be used in a declaration are
decl-specifier:
storage-class-specifier
...
So in this declaration
static int s_One, s_Two;
the decl-specifier-seq contains two decl-specifiers, static (storage class specifier) and int. Thus the storage class specifier static describes the both variables in the init-declarator-list s_One and s_Two.
answered 8 hours ago
Vlad from MoscowVlad from Moscow
148k13 gold badges89 silver badges188 bronze badges
1
That's not enough; this doesn't show that the SCS applies to both, just that is possible.
– Rakete1111
8 hours ago
3
No, it is not. Why do you say it is invalid?
– Doch88
8 hours ago
2
@VladfromMoscow why?
– Henri
8 hours ago
3
@VladfromMoscow How is declaring two separatestaticints invalid syntax?
– Jesper Juhl
8 hours ago
1
@Doch88 I did not see that there is a semicolon instead of comma.:)
– Vlad from Moscow
8 hours ago
|
show 3 more comments
According to the C++ 17 Standard (10 Declarations)
2 A simple-declaration or nodeclspec-function-declaration of the form
attribute-specifier-seqopt decl-specifier-seqopt init-declarator-listopt ;
And (10.1 Specifiers):
1 The specifiers that can be used in a declaration are
decl-specifier:
storage-class-specifier
...
So in this declaration
static int s_One, s_Two;
the decl-specifier-seq contains two decl-specifiers, static (storage class specifier) and int. Thus the storage class specifier static describes the both variables in the init-declarator-list s_One and s_Two.
answered 8 hours ago
Vlad from MoscowVlad from Moscow
148k13 gold badges89 silver badges188 bronze badges
According to the C++ 17 Standard (10 Declarations)
2 A simple-declaration or nodeclspec-function-declaration of the form
attribute-specifier-seqopt decl-specifier-seqopt init-declarator-listopt ;
And (10.1 Specifiers):
1 The specifiers that can be used in a declaration are
decl-specifier:
storage-class-specifier
...
So in this declaration
static int s_One, s_Two;
the decl-specifier-seq contains two decl-specifiers, static (storage class specifier) and int. Thus the storage class specifier static describes the both variables in the init-declarator-list s_One and s_Two.
answered 8 hours ago
Vlad from MoscowVlad from Moscow
148k13 gold badges89 silver badges188 bronze badges
edited 8 hours ago
answered 8 hours ago
Vlad from MoscowVlad from Moscow
148k13 gold badges89 silver badges188 bronze badges
answered 8 hours ago
Vlad from MoscowVlad from Moscow
148k13 gold badges89 silver badges188 bronze badges
answered 8 hours ago
Vlad from MoscowVlad from Moscow
148k13 gold badges89 silver badges188 bronze badges
148k13 gold badges89 silver badges188 bronze badges
1
That's not enough; this doesn't show that the SCS applies to both, just that is possible.
– Rakete1111
8 hours ago
3
No, it is not. Why do you say it is invalid?
– Doch88
8 hours ago
2
@VladfromMoscow why?
– Henri
8 hours ago
3
@VladfromMoscow How is declaring two separatestaticints invalid syntax?
– Jesper Juhl
8 hours ago
1
@Doch88 I did not see that there is a semicolon instead of comma.:)
– Vlad from Moscow
8 hours ago
|
show 3 more comments
1
That's not enough; this doesn't show that the SCS applies to both, just that is possible.
– Rakete1111
8 hours ago
3
No, it is not. Why do you say it is invalid?
– Doch88
8 hours ago
2
@VladfromMoscow why?
– Henri
8 hours ago
3
@VladfromMoscow How is declaring two separatestaticints invalid syntax?
– Jesper Juhl
8 hours ago
1
@Doch88 I did not see that there is a semicolon instead of comma.:)
– Vlad from Moscow
8 hours ago
1
1
That's not enough; this doesn't show that the SCS applies to both, just that is possible.
– Rakete1111
8 hours ago
That's not enough; this doesn't show that the SCS applies to both, just that is possible.
– Rakete1111
8 hours ago
3
3
No, it is not. Why do you say it is invalid?
– Doch88
8 hours ago
No, it is not. Why do you say it is invalid?
– Doch88
8 hours ago
2
2
@VladfromMoscow why?
– Henri
8 hours ago
@VladfromMoscow why?
– Henri
8 hours ago
3
3
@VladfromMoscow How is declaring two separate
static ints invalid syntax?– Jesper Juhl
8 hours ago
@VladfromMoscow How is declaring two separate
static ints invalid syntax?– Jesper Juhl
8 hours ago
1
1
@Doch88 I did not see that there is a semicolon instead of comma.:)
– Vlad from Moscow
8 hours ago
@Doch88 I did not see that there is a semicolon instead of comma.:)
– Vlad from Moscow
8 hours ago
|
show 3 more comments
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This question can be answered by reading the standard. But, why don't you simply remove the ambiguity by declaring each variable on its own?
– Jesper Juhl
8 hours ago
9
@JesperJuhl: Arguably, most answers about C++ can be answered by reading the standard. But the standard is big and sometimes difficult to navigate.
– rodrigo
8 hours ago
@JesperJuhl The answer might also be valuable to other people.
– ruohola
7 hours ago