diff options
Diffstat (limited to 'sys/base/string/makef.c')
-rw-r--r-- | sys/base/string/makef.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/sys/base/string/makef.c b/sys/base/string/makef.c new file mode 100644 index 0000000..8fb9c38 --- /dev/null +++ b/sys/base/string/makef.c @@ -0,0 +1,25 @@ +#include "internal.h" + +// Newf returns a new dynamic string object +string +strĀ·makef(const byte *fmt, ...) +{ + vlong n; + string s; + va_list args; + + va_start(args, fmt); + n = vsnprintf(nil, 0, fmt, args); + va_end(args); + + s = strĀ·makecap(nil, 0, n); + + va_start(args, fmt); + vsnprintf(s, n + 1, fmt, args); + va_end(args); + + Hdr* h = (Hdr*)(s - sizeof(Hdr)); + h->len = n; + + return s; +} |