From 54d5ba67489b3fdaf437c05675eb9b1f6d085a84 Mon Sep 17 00:00:00 2001 From: Marc Pervaz Boocha Date: Thu, 7 Apr 2022 19:33:30 +0530 Subject: Initial commit --- io/vasprintf.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 io/vasprintf.c (limited to 'io/vasprintf.c') diff --git a/io/vasprintf.c b/io/vasprintf.c new file mode 100644 index 0000000..24f9332 --- /dev/null +++ b/io/vasprintf.c @@ -0,0 +1,18 @@ +#include "../memory.h" +#include "io.h" + +int vasprintf(char **string, char const *restrict format, va_list arg) +{ + va_list tmp; + va_copy(tmp, arg); + int lenght = _vsnprintf_wrap(NULL, 0, format, tmp); + va_end(tmp); + if (lenght < 0) { + return 1; + } + *string = reallocarray(NULL, (size_t)lenght + 1, sizeof *string); + if (*string == NULL) { + return 1; + } + return _vsnprintf_wrap(*string, (size_t)lenght + 1, format, arg); +} -- cgit v1.2.3-70-g09d2