tests: Fix ISO C compliance warnings

[Bruno Haible]

When compiling a gnulib testdir with CC="gcc -std=gnu99 -pedantic" I see
these warnings:

test-c-strcasestr.c:63:26: warning: array initialized from parenthesized string 
constant [-Wpedantic]
test-c-strcasestr.c:71:26: warning: array initialized from parenthesized string 
constant [-Wpedantic]
test-memmem.c:93:26: warning: array initialized from parenthesized string 
constant [-Wpedantic]
test-memmem.c:101:26: warning: array initialized from parenthesized string 
constant [-Wpedantic]
test-strcasestr.c:77:26: warning: array initialized from parenthesized string 
constant [-Wpedantic]
test-strcasestr.c:85:26: warning: array initialized from parenthesized string 
constant [-Wpedantic]

This patch should fix it.


2020-09-05  Bruno Haible  <bruno@clisp.org>

        Fix "warning: array initialized from parenthesized string constant".
        * tests/test-memmem.c (main): Remove parentheses around string constant.
        * tests/test-c-strcasestr.c (main): Likewise.
        * tests/test-strcasestr.c (main): Likewise.

diff --git a/tests/test-c-strcasestr.c b/tests/test-c-strcasestr.c
index 6ccdd6b..ea8641c 100644
--- a/tests/test-c-strcasestr.c
+++ b/tests/test-c-strcasestr.c
@@ -60,18 +60,18 @@ main ()
 
   /* Check that a long periodic needle does not cause false positives.  */
   {
-    const char input[] = ("F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
-                          "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
-                          "_C3_A7_20_EF_BF_BD");
+    const char input[] = "F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                         "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                         "_C3_A7_20_EF_BF_BD";
     const char need[] = "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD";
     const char *result = c_strcasestr (input, need);
     ASSERT (result == NULL);
   }
   {
-    const char input[] = ("F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
-                          "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
-                          "_C3_A7_20_EF_BF_BD_DA_B5_C2_A6_20"
-                          "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD");
+    const char input[] = "F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                         "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                         "_C3_A7_20_EF_BF_BD_DA_B5_C2_A6_20"
+                         "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD";
     const char need[] = "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD";
     const char *result = c_strcasestr (input, need);
     ASSERT (result == input + 115);
diff --git a/tests/test-memmem.c b/tests/test-memmem.c
index 132265f..0368dfd 100644
--- a/tests/test-memmem.c
+++ b/tests/test-memmem.c
@@ -90,18 +90,18 @@ main (int argc, char *argv[])
 
   /* Check that a long periodic needle does not cause false positives.  */
   {
-    const char input[] = ("F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
-                          "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
-                          "_C3_A7_20_EF_BF_BD");
+    const char input[] = "F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                         "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                         "_C3_A7_20_EF_BF_BD";
     const char need[] = "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD";
     const char *result = memmem (input, strlen (input), need, strlen (need));
     ASSERT (result == NULL);
   }
   {
-    const char input[] = ("F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
-                          "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
-                          "_C3_A7_20_EF_BF_BD_DA_B5_C2_A6_20"
-                          "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD");
+    const char input[] = "F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                         "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                         "_C3_A7_20_EF_BF_BD_DA_B5_C2_A6_20"
+                         "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD";
     const char need[] = "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD";
     const char *result = memmem (input, strlen (input), need, strlen (need));
     ASSERT (result == input + 115);
diff --git a/tests/test-strcasestr.c b/tests/test-strcasestr.c
index 6100fe3..3a267c6 100644
--- a/tests/test-strcasestr.c
+++ b/tests/test-strcasestr.c
@@ -74,18 +74,18 @@ main ()
 
   /* Check that a long periodic needle does not cause false positives.  */
   {
-    const char input[] = ("F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
-                          "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
-                          "_C3_A7_20_EF_BF_BD");
+    const char input[] = "F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                         "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                         "_C3_A7_20_EF_BF_BD";
     const char need[] = "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD";
     const char *result = strcasestr (input, need);
     ASSERT (result == NULL);
   }
   {
-    const char input[] = ("F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
-                          "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
-                          "_C3_A7_20_EF_BF_BD_DA_B5_C2_A6_20"
-                          "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD");
+    const char input[] = "F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                         "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                         "_C3_A7_20_EF_BF_BD_DA_B5_C2_A6_20"
+                         "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD";
     const char need[] = "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD";
     const char *result = strcasestr (input, need);
     ASSERT (result == input + 115);