directly pass the function's return (and call) as another parameter directly in C
I'm wondering if this can be done with pointers, except when I think about it I understand how to pass the function it's self, but not the return.
curious ..
int someNum (void) {
int num = 5;
return num;
}
int addNum (int num) {
int addingNum = 1;
addingNum += num;
return addingNum;
}
.. if this is possible ..
int main (void) {
addNum(sumNum())
return 0;
}
.. instead of this
int main (void) {
int num = 0;
int newNum = 0;
num = sumNum();
newNum = addNum(num)
return 0;
}
c
asked Jan 19 at 3:15
Robert OchinskiRobert Ochinski
1439
add a comment |
I'm wondering if this can be done with pointers, except when I think about it I understand how to pass the function it's self, but not the return.
curious ..
int someNum (void) {
int num = 5;
return num;
}
int addNum (int num) {
int addingNum = 1;
addingNum += num;
return addingNum;
}
.. if this is possible ..
int main (void) {
addNum(sumNum())
return 0;
}
.. instead of this
int main (void) {
int num = 0;
int newNum = 0;
num = sumNum();
newNum = addNum(num)
return 0;
}
c
asked Jan 19 at 3:15
Robert OchinskiRobert Ochinski
1439
See C11 Standard - 6.5.2.2 Function calls(p10) related to sequence points and the indeterminate sequencing of function parameters.
– David C. Rankin
Jan 19 at 4:12
it's a totally normal thing to do
– Chris Rollins
Jan 19 at 4:52
Welcome to Stack Overflow! Please read what this site is about and "How to ask" before asking a question.
– Stefan Becker
Jan 19 at 9:08
add a comment |
I'm wondering if this can be done with pointers, except when I think about it I understand how to pass the function it's self, but not the return.
curious ..
int someNum (void) {
int num = 5;
return num;
}
int addNum (int num) {
int addingNum = 1;
addingNum += num;
return addingNum;
}
.. if this is possible ..
int main (void) {
addNum(sumNum())
return 0;
}
.. instead of this
int main (void) {
int num = 0;
int newNum = 0;
num = sumNum();
newNum = addNum(num)
return 0;
}
c
asked Jan 19 at 3:15
Robert OchinskiRobert Ochinski
1439
I'm wondering if this can be done with pointers, except when I think about it I understand how to pass the function it's self, but not the return.
curious ..
int someNum (void) {
int num = 5;
return num;
}
int addNum (int num) {
int addingNum = 1;
addingNum += num;
return addingNum;
}
.. if this is possible ..
int main (void) {
addNum(sumNum())
return 0;
}
.. instead of this
int main (void) {
int num = 0;
int newNum = 0;
num = sumNum();
newNum = addNum(num)
return 0;
}
c
c
asked Jan 19 at 3:15
Robert OchinskiRobert Ochinski
1439
asked Jan 19 at 3:15
Robert OchinskiRobert Ochinski
1439
asked Jan 19 at 3:15
Robert OchinskiRobert Ochinski
1439
asked Jan 19 at 3:15
Robert OchinskiRobert Ochinski
1439
asked Jan 19 at 3:15
Robert OchinskiRobert Ochinski
1439
1439
See C11 Standard - 6.5.2.2 Function calls(p10) related to sequence points and the indeterminate sequencing of function parameters.
– David C. Rankin
Jan 19 at 4:12
it's a totally normal thing to do
– Chris Rollins
Jan 19 at 4:52
Welcome to Stack Overflow! Please read what this site is about and "How to ask" before asking a question.
– Stefan Becker
Jan 19 at 9:08
add a comment |
See C11 Standard - 6.5.2.2 Function calls(p10) related to sequence points and the indeterminate sequencing of function parameters.
– David C. Rankin
Jan 19 at 4:12
it's a totally normal thing to do
– Chris Rollins
Jan 19 at 4:52
Welcome to Stack Overflow! Please read what this site is about and "How to ask" before asking a question.
– Stefan Becker
Jan 19 at 9:08
See C11 Standard - 6.5.2.2 Function calls(p10) related to sequence points and the indeterminate sequencing of function parameters.
– David C. Rankin
Jan 19 at 4:12
See C11 Standard - 6.5.2.2 Function calls(p10) related to sequence points and the indeterminate sequencing of function parameters.
– David C. Rankin
Jan 19 at 4:12
it's a totally normal thing to do
– Chris Rollins
Jan 19 at 4:52
it's a totally normal thing to do
– Chris Rollins
Jan 19 at 4:52
Welcome to Stack Overflow! Please read what this site is about and "How to ask" before asking a question.
– Stefan Becker
Jan 19 at 9:08
Welcome to Stack Overflow! Please read what this site is about and "How to ask" before asking a question.
– Stefan Becker
Jan 19 at 9:08
add a comment |
1 Answer
1
active
oldest
votes
It is OK to do :
int main (void) {
int newNum = addNum(sumNum())
return 0;
}
The result is the same as:
int main (void) {
int num = 0;
int newNum = 0;
num = sumNum();
newNum = addNum(num)
return 0;
}
Sometimes we write using the first style, sometimes we can use the second style, it depends which one is more readable and easily understanding.
answered Jan 19 at 3:18
shawnshawn
3,245618
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
It is OK to do :
int main (void) {
int newNum = addNum(sumNum())
return 0;
}
The result is the same as:
int main (void) {
int num = 0;
int newNum = 0;
num = sumNum();
newNum = addNum(num)
return 0;
}
Sometimes we write using the first style, sometimes we can use the second style, it depends which one is more readable and easily understanding.
answered Jan 19 at 3:18
shawnshawn
3,245618
add a comment |
It is OK to do :
int main (void) {
int newNum = addNum(sumNum())
return 0;
}
The result is the same as:
int main (void) {
int num = 0;
int newNum = 0;
num = sumNum();
newNum = addNum(num)
return 0;
}
Sometimes we write using the first style, sometimes we can use the second style, it depends which one is more readable and easily understanding.
answered Jan 19 at 3:18
shawnshawn
3,245618
add a comment |
It is OK to do :
int main (void) {
int newNum = addNum(sumNum())
return 0;
}
The result is the same as:
int main (void) {
int num = 0;
int newNum = 0;
num = sumNum();
newNum = addNum(num)
return 0;
}
Sometimes we write using the first style, sometimes we can use the second style, it depends which one is more readable and easily understanding.
answered Jan 19 at 3:18
shawnshawn
3,245618
It is OK to do :
int main (void) {
int newNum = addNum(sumNum())
return 0;
}
The result is the same as:
int main (void) {
int num = 0;
int newNum = 0;
num = sumNum();
newNum = addNum(num)
return 0;
}
Sometimes we write using the first style, sometimes we can use the second style, it depends which one is more readable and easily understanding.
answered Jan 19 at 3:18
shawnshawn
3,245618
answered Jan 19 at 3:18
shawnshawn
3,245618
answered Jan 19 at 3:18
shawnshawn
3,245618
answered Jan 19 at 3:18
shawnshawn
3,245618
3,245618
add a comment |
add a comment |
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See C11 Standard - 6.5.2.2 Function calls(p10) related to sequence points and the indeterminate sequencing of function parameters.
– David C. Rankin
Jan 19 at 4:12
it's a totally normal thing to do
– Chris Rollins
Jan 19 at 4:52
Welcome to Stack Overflow! Please read what this site is about and "How to ask" before asking a question.
– Stefan Becker
Jan 19 at 9:08