CODEWITHSUNDEEP
c++stringreplace
Asim
Asim

Reputation: 72

Replace spaces with int in a string in c++

I have to replace spaces with 0 (integer 0) in a string. i.e. to null terminate each word in this string.

char data[] = "r1 2 3 1.0kohm \n v1 1 0 5.5v";

when I do like this:

int index = 0;
char token[50];
while (data[index] != '\0')
{
     token[index] = 0;
     index++;                 
}

but it replaces with character 0 not integer 0.

Upvotes: 1

Views: 1987

Answers (2)

Yousf
Yousf

Reputation: 3997

Better to use @juanchopanza solution. But if you don't want to use STL, modify your code to be:

const int len = strlen(data);
for (int i = 0; i < len; i++)
{
     if (data[i] == ' ')
          data[i] = '\0';            
}

Upvotes: 1

juanchopanza
juanchopanza

Reputation: 227390

I have to replace spaces with 0 (integer 0) in a string.

You can achieve this easily with the std::replace algorithm:

std::string data = "r1 2 3 1.0kohm \n v1 1 0 5.5v";
std::replace(data.begin(), data.end(), ' ', '\0');

This would also work with a plain char array:

char data[] = "r1 2 3 1.0kohm \n v1 1 0 5.5v";
std::replace(std::begin(data), std::end(data), ' ', '\0');

You will need to include the <algorithm> header for std::replace.

Upvotes: 5

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