fix Issue 23958 - ImportC: undefined identifier __builtin__sprintf_chk (

#15502)
dlang · Aug 4, 2023 · 901c900 · 901c900
1 parent 6fee586
commit 901c900
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diff --git a/compiler/test/compilable/test23958.c b/compiler/test/compilable/test23958.c
@@ -0,0 +1,8 @@
+// https://issues.dlang.org/show_bug.cgi?id=23958
+
+#include <stdio.h>
+
+int main() {
+    char buf[8];
+    sprintf(buf, "%d", 123);
+}
diff --git a/druntime/src/importc.h b/druntime/src/importc.h
@@ -105,6 +105,7 @@
 #define __builtin___strcpy_chk(dest, src, x) strcpy(dest,src)
 #define __builtin___strncat_chk(dest, src, len, x) strncat(dest,src,len)
 #define __builtin___strncpy_chk(dest, src, len, x) strncpy(dest,src,len)
+#define __builtin___sprintf_chk(s, flag, os, fmt, ...) sprintf(s, fmt, __VA_ARGS__)
 #endif
 
 #if __FreeBSD__