Snprintf with malloc

size_t required_size = snprintf(NULL, 0, "%s: %s (%d)", msg, strerror(errno), errno) + 1;
char  *buffer = malloc(needed);
sprintf(buffer, "%s: %s (%d)", msg, strerror(errno), errno);

Source: stackoverflow.com

Similar codes

0 vote345 views1 answer
What is char in programming
C
29 votes420 views1 answer
Best sites for coding challenges
C
0 vote391 views2 answers
String array input in c
C
0 vote375 views3 answers
How to input n space separated integers in c
C
1 vote317 views1 answer
What is "," in programming syntax
C
6 votes378 views2 answers
How to download file in powershell
C
1 vote376 views2 answers
Importerror no module named skbuild opencv
C
0 vote364 views1 answer
Flake8 ignore line length
C
15 votes419 views2 answers
Boolean in c
C
3 votes362 views1 answer
C printing char pointer
C