From f919aab408bc5cf22fb2a595437eab6868f3576d Mon Sep 17 00:00:00 2001
From: Xavier Roche <xroche@users.noreply.github.com>
Date: Wed, 28 May 2014 19:05:31 +0000
Subject: Added assert

---
 src/htstools.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/htstools.c')

diff --git a/src/htstools.c b/src/htstools.c
index 0894e47..1780a53 100644
--- a/src/htstools.c
+++ b/src/htstools.c
@@ -788,6 +788,7 @@ static int hts_template_formatv(hts_template_format_buf *buf,
 #define FPUTS(S) do { \
   size_t i; \
   const char *const str_ = (S); \
+  assertf(str_ != NULL); \
   for(i = 0 ; str_[i] != '\0' ; i++) { \
     FPUTC(str_[i]); \
   } \
-- 
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