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P: 5
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Hey
First of, c++ aint my primary language, just started using it (again) two weeks ago.. Anyways, i tried searching around on google for a method to split a char* and return the first word in the array. - char* test = "hello this is a test";
In C#, i would use Regex.Split(test, " ")[0] to get the first word ("hello"), but i dont know how to do that in C++.
Anyone who can help me out? ;-)
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| Expert 100+
P: 1,510
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Hey
First of, c++ aint my primary language, just started using it (again) two weeks ago.. Anyways, i tried searching around on google for a method to split a char* and return the first word in the array.
- char* test = "hello this is a test";
In C#, i would use Regex.Split(test, " ")[0] to get the first word ("hello"), but i dont know how to do that in C++.
Anyone who can help me out? ;-)
you can use a string tokenizer, see
http://www.thescripts.com/forum/thread607870.html
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P: 39
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strtok is the beast that you are looking for and it is used in a similar fashion. reference | |
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P: 5
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Thanks for the quick answers :-)
I tried an example and it did work out: -
int main(int argc, char *argv[])
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{
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char str[] = "this is a test";
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char* test;
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test = strtok(str, " "); // Splits spaces between words in str
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printf ("%s\n",test); // Writes "this"
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test = strtok (NULL, " ,.-");
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printf("\n%i\n",sizeof(test)); // Writes 4
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system("pause");
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return 0;
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}
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However, when i try and print test[1] (which i thought would be self explainary to do), i get an error "C2664" about that i cant " convert parameter 1 from 'char' to 'const char *' ".
How do i convert it?
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| Expert 100+
P: 1,510
|
Thanks for the quick answers :-)
I tried an example and it did work out:
-
int main(int argc, char *argv[])
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{
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char str[] = "this is a test";
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char* test;
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test = strtok(str, " "); // Splits spaces between words in str
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printf ("%s\n",test); // Writes "this"
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test = strtok (NULL, " ,.-");
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printf("\n%i\n",sizeof(test)); // Writes 4
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system("pause");
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return 0;
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}
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However, when i try and print test[1] (which i thought would be self explainary to do), i get an error "C2664" about that i cant " convert parameter 1 from 'char' to 'const char *' ".
How do i convert it?
is this what you are trying to do -
char str[] = "this is a test";
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char *test[10];
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test[0] = strtok(str, " "); // Splits spaces between words in str
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printf ("%s\n",test[0]); // Writes "this"
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test[1] = strtok (NULL, " ,.-");
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printf ("%s\n",test[1]); // Writes "is"
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test needs to be an array of char*
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P: 5
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is this what you are trying to do
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char str[] = "this is a test";
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char *test[10];
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test[0] = strtok(str, " "); // Splits spaces between words in str
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printf ("%s\n",test[0]); // Writes "this"
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test[1] = strtok (NULL, " ,.-");
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printf ("%s\n",test[1]); // Writes "is"
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test needs to be an array of char*
yeah thats what i wanted to do, thank you :-)
This is what i ended up with: -
int main(int argc, char *argv[])
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{
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char str[] = "this is a test";
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char *test[sizeof(strtok(str, " "))];
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if(sizeof(test) > 0)
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{
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test[0] = strtok(str, " "); // Splits spaces between words in str
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printf ("%s\n",test[0]); // Writes "this"
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for(int i = 1; i < sizeof(strtok(str, " ")); i++)
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{
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test[i] = strtok (NULL, " ,.-");
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printf ("%s\n",test[i]); // Writes "is"
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}
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}
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system("pause");
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return 0;
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}
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Anyways, thanks for all the replies. I appriciate that :-)
| | | |  Question stats - viewed: 61806
- replies: 5
- date asked: Mar 19 '07
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