Line Splicing 

In C and C++ you can join the next line to the current line using Line spicing. Requires ‘\’ to be added at the end of the line.

Example code to demostrate line splicing.

[yogi@192 devel]$ cat linesplice.c
#include <stdio.h>

int main(int argc, char *argv[])
{
// test line splice
printf(“Hello\n”);
printf(“World\n”);

return 0;
}
[yogi@192 devel]$ gcc -o linesplice linesplice.c
[yogi@192 devel]$ ./linesplice
Hello
World
[yogi@192 devel]$ vi linesplice.c
[yogi@192 devel]$ cat linesplice.c
#include <stdio.h>

int main(int argc, char *argv[])
{
// test line splice \
printf(“Hello\n”);
printf(“World\n”);

return 0;
}
[yogi@192 devel]$ gcc -o linesplice linesplice.c
[yogi@192 devel]$ ./linesplice
World
[yogi@192 devel]$ vi linesplice.c
[yogi@192 devel]$ gcc -o linesplice linesplice.c
[yogi@192 devel]$ cat linesplice.c
#include <stdio.h>

int main(int argc, char *argv[])
{
// test line splice \
printf(“Hello\n”); \
printf(“World\n”);

return 0;
}
[yogi@192 devel]$ ./linesplice
[yogi@192 devel]$

Source: Line Splicing in C/C++ – GeeksforGeeks