From c26251cf0a49537c7382104ddf4141f98dbf9efe Mon Sep 17 00:00:00 2001
From: fundamental <mark.d.mccurry@gmail.com>
Date: Sat, 4 Jan 2020 12:51:02 -0500
Subject: [PATCH] Eliminate VLAs for MSVC

---
 test/common.h          |  3 ++-
 test/pretty-format.cpp | 15 ++++++++-------
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/test/common.h b/test/common.h
index b477cc2..5b98256 100644
--- a/test/common.h
+++ b/test/common.h
@@ -198,7 +198,7 @@ int assert_hex_eq(const char *a, const char *b, size_t size_a, size_t size_b,
         //create difference mask
         const int longer  = size_a > size_b ? size_a : size_b;
         const int shorter = size_a < size_b ? size_a : size_b;
-        char mask[longer];
+        char *mask = (char*)malloc(longer);
         memset(mask, 0, longer);
         for(int i=0; i<shorter; ++i)
             if(a[i] != b[i])
@@ -210,6 +210,7 @@ int assert_hex_eq(const char *a, const char *b, size_t size_a, size_t size_b,
         printf("#\n");
         printf("# Observed:\n");
         hexdump(b, mask, size_b);
+        free(mask);
 
         global_err++;
     } else
diff --git a/test/pretty-format.cpp b/test/pretty-format.cpp
index 2ce6e59..c894e3b 100644
--- a/test/pretty-format.cpp
+++ b/test/pretty-format.cpp
@@ -5,6 +5,7 @@
 #include "common.h"
 
 rtosc_arg_val_t scanned[32];
+#define BUF_LEN 256
 
 /**
  * @brief check_alt like check, but specify an alternative expectation
@@ -19,10 +20,10 @@ void check_alt(const char* arg_val_str, const rtosc_print_options* opt,
                const char* tc_base, int line,
                const char* _exp_print)
 {
-    int tc_len = 256;
-    char tc_full[tc_len]; // descr. for full testcase name
-    int strbuflen = 256;
-    char strbuf[strbuflen];
+    const int tc_len = BUF_LEN;
+    char tc_full[BUF_LEN]; // descr. for full testcase name
+    int strbuflen = BUF_LEN;
+    char strbuf[BUF_LEN];
     memset(strbuf, 0x7f, strbuflen); /* init with rubbish */
 
     int num = rtosc_count_printed_arg_vals(arg_val_str);
@@ -451,8 +452,8 @@ void scan_ranges()
 
 void fail_at_arg(const char* arg_val_str, int exp_fail, int line)
 {
-    int tc_len = 256;
-    char tc_full[tc_len]; // descr. for full testcase name
+    const int tc_len = BUF_LEN;
+    char tc_full[BUF_LEN]; // descr. for full testcase name
 
     int num = rtosc_count_printed_arg_vals(arg_val_str);
 
@@ -480,7 +481,7 @@ void messages()
 
     num = rtosc_count_printed_arg_vals_of_msg(input);
     assert_int_eq(3, num, "read a /noteOn message", __LINE__);
-    rtosc_arg_val_t scanned[num];
+    rtosc_arg_val_t scanned[3];
     size_t rd = rtosc_scan_message(input, msgbuf, msgbuflen,
                                    scanned, num,
                                    strbuf, strbuflen);