5 files changed, 134 insertions, 1 deletions
diff --git a/test/regression/Makefile b/test/regression/Makefile
index daee05bc..53719900 100644
--- a/test/regression/Makefile
+++ b/test/regression/Makefile
@@ -16,7 +16,7 @@ TESTS=int32 int64 floats floats-basics floats-lit \
   funct3 expr5 struct7 struct8 struct11 struct12 casts1 casts2 char1 \
   sizeof1 sizeof2 binops bool for1 for2 switch switch2 compound \
   decl1 bitfields9 ptrs3 \
-  parsing krfun ifconv generic
+  parsing krfun ifconv generic stringlit charlit
 
 # Can run, but only in compiled mode, and have reference output in Results
 
diff --git a/test/regression/Results/charlit b/test/regression/Results/charlit
new file mode 100644
index 00000000..3954a0c8
--- /dev/null
+++ b/test/regression/Results/charlit
@@ -0,0 +1,27 @@
+c1: 61
+c2: 61
+c3: 61
+c4: 61
+d1: fe
+d2: fe
+d3: fe
+d4: fe
+e1: 34
+e2: 1234
+e3: 1234
+e4: 1234
+f1: e9
+f2: e9
+f3: e9
+f4: e9
+g1: 2b
+g2: 732b
+g3: 732b
+g4: 732b
+h1: 4c
+h2: f34c
+h3: 1f34c
+h4: 1f34c
+m1: 6162
+m2: 1020304
+m3: e9e8
diff --git a/test/regression/Results/stringlit b/test/regression/Results/stringlit
new file mode 100644
index 00000000..d6967ccc
--- /dev/null
+++ b/test/regression/Results/stringlit
@@ -0,0 +1,15 @@
+s1: size 11, contents 61 c3 a9 e7 8c ab f0 9f 8d 8c
+s2: size 11, contents 61 c3 a9 e7 8c ab f0 9f 8d 8c
+s3: size 12, contents 61 e9 732b d83c df4c
+s4: size 20, contents 61 e9 732b 1f34c
+s5: size 20, contents 61 e9 732b 1f34c
+t1: size 11, contents 61 c3 a9 e7 8c ab f0 9f 8d 8c
+t2: size 11, contents 61 c3 a9 e7 8c ab f0 9f 8d 8c
+t3: size 12, contents 61 e9 732b d83c df4c
+t4: size 20, contents 61 e9 732b 1f34c
+t5: size 20, contents 61 e9 732b 1f34c
+e1: size 4, contents 61 e9 e8
+e2: size 4, contents 61 e9 e8
+e3: size 10, contents 61 e9 e8 732b
+e4: size 24, contents 61 e9 e8 732b 1f34c
+e5: size 24, contents 61 e9 e8 732b 1f34c
diff --git a/test/regression/charlit.c b/test/regression/charlit.c
new file mode 100644
index 00000000..5a7e0916
--- /dev/null
+++ b/test/regression/charlit.c
@@ -0,0 +1,50 @@
+#include <stdio.h>
+#include <wchar.h>
+#include <uchar.h>
+
+unsigned char c1 = 'a';
+char16_t c2 = u'a';;
+char32_t c3 = U'a';;
+wchar_t c4 = L'a';;
+
+unsigned char d1 = '\xFE';
+char16_t d2 = u'\xFE';;
+char32_t d3 = U'\xFE';;
+wchar_t d4 = L'\xFE';;
+
+unsigned char e1 = '\x1234'; // warning but no error
+char16_t e2 = u'\x1234';
+char32_t e3 = U'\x1234';
+wchar_t e4 = L'\x1234';
+
+unsigned char f1 = 'é';      // CompCert tolerance
+char16_t f2 = u'é';
+char32_t f3 = U'é';
+wchar_t f4 = L'é';
+
+unsigned char g1 = '猫';     // CompCert tolerance + warning
+char16_t g2 = u'猫';
+char32_t g3 = U'猫';
+wchar_t g4 = L'猫';
+
+unsigned char h1 = '🍌';     // CompCert tolerance + warning
+char16_t h2 = u'🍌';         // CompCert tolerance + warning
+char32_t h3 = U'🍌';
+wchar_t h4 = L'🍌';
+
+int m1 = 'ab';
+int m2 = '\x01\x02\x03\x04';
+int m3 = 'éè';              // CompCert tolerance
+
+#define PRINT(x) printf("%s: %x\n", #x, x)
+
+int main()
+{
+  PRINT(c1); PRINT(c2); PRINT(c3); PRINT(c4);
+  PRINT(d1); PRINT(d2); PRINT(d3); PRINT(d4);
+  PRINT(e1); PRINT(e2); PRINT(e3); PRINT(e4);
+  PRINT(f1); PRINT(f2); PRINT(f3); PRINT(f4);
+  PRINT(g1); PRINT(g2); PRINT(g3); PRINT(g4);
+  PRINT(h1); PRINT(h2); PRINT(h3); PRINT(h4);
+  PRINT(m1); PRINT(m2); PRINT(m3);
+}
diff --git a/test/regression/stringlit.c b/test/regression/stringlit.c
new file mode 100644
index 00000000..155f8ebb
--- /dev/null
+++ b/test/regression/stringlit.c
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <wchar.h>
+#include <uchar.h>
+
+/* Without escapes nor universal character names */
+
+unsigned char s1[] = "aé猫🍌";
+unsigned char s2[] = u8"aé猫🍌";
+char16_t s3[] = u"aé猫🍌";
+char32_t s4[] = U"aé猫🍌";
+wchar_t s5[] = L"aé猫🍌";
+
+/* With universal character names */
+
+unsigned char t1[] = "a\u00e9\u732B\U0001F34C";
+unsigned char t2[] = u8"a\u00e9\u732B\U0001F34C";
+char16_t t3[] = u"a\u00e9\u732B\U0001F34C";
+char32_t t4[] = U"a\u00e9\u732B\U0001F34C";
+wchar_t t5[] = L"a\u00e9\u732B\U0001F34C";
+
+/* With numerical escapes */
+
+unsigned char e1[] = "a\xe9\350";
+unsigned char e2[] = u8"a\xe9\350";
+char16_t e3[] = u"a\xe9\350\x732B";
+char32_t e4[] = U"a\xe9\350\x732B\x0001F34C";
+wchar_t e5[] = L"a\xe9\350\x732B\x0001F34C";
+
+#define PRINT(x) \
+  printf("%s: size %u, contents", #x, (int) sizeof(x)); \
+  for (int i = 0; x[i] != 0; i++) printf(" %x", x[i]); \
+  printf("\n")
+
+int main()
+{
+  PRINT(s1); PRINT(s2); PRINT(s3); PRINT(s4); PRINT(s5);
+  PRINT(t1); PRINT(t2); PRINT(t3); PRINT(t4); PRINT(t5);
+  PRINT(e1); PRINT(e2); PRINT(e3); PRINT(e4); PRINT(e5);
+  return 0;
+}
+