From db7c309c8bb09c5de0dcd5de9a7fab7e0e143876 Mon Sep 17 00:00:00 2001 From: "David B. Lamkins" Date: Fri, 9 Oct 2015 10:35:02 +0200 Subject: text: fix usage of va_arg in text_vprintf Closes #76 --- text.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/text.c b/text.c index 94a32f9..0bcf173 100644 --- a/text.c +++ b/text.c @@ -643,12 +643,15 @@ bool text_printf(Text *txt, size_t pos, const char *format, ...) { } bool text_vprintf(Text *txt, size_t pos, const char *format, va_list ap) { + va_list ap_save; + va_copy(ap_save, ap); int len = vsnprintf(NULL, 0, format, ap); if (len == -1) return false; char *buf = malloc(len+1); - bool ret = buf && (vsnprintf(buf, len+1, format, ap) == len) && text_insert(txt, pos, buf, len); + bool ret = buf && (vsnprintf(buf, len+1, format, ap_save) == len) && text_insert(txt, pos, buf, len); free(buf); + va_end(ap_save); return ret; } -- cgit v1.2.3