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-rw-r--r--main/snprintf.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/main/snprintf.c b/main/snprintf.c
index a1b253cfda..6e5a89a34c 100644
--- a/main/snprintf.c
+++ b/main/snprintf.c
@@ -497,8 +497,11 @@ char * ap_php_conv_p2(register u_wide_int num, register int nbits, char format,
* NUM_BUF_SIZE is the size of the buffer used for arithmetic conversions
*
* XXX: this is a magic number; do not decrease it
+ * Emax = 1023
+ * NDIG = 320
+ * NUM_BUF_SIZE >= strlen("-") + Emax + strlrn(".") + NDIG + strlen("E+1023") + 1;
*/
-#define NUM_BUF_SIZE 512
+#define NUM_BUF_SIZE 2048
/*