Testcases for long bit-fields.

2022-03-03 16:14:26 +08:00
parent 4f4487cb03
commit 67594cca70
7 changed files with 1123 additions and 73 deletions
--- a/test/val/bitfield-plain.c
+++ b/test/val/bitfield-plain.c
@@ -0,0 +1,180 @@
+/*
+  Copyright 2020-2022 The cc65 Authors
+
+  This software is provided 'as-is', without any express or implied
+  warranty. In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+/*
+  Tests that plain bit-fields are unsigned; see issues below
+  - unsigned integer types by default: https://github.com/cc65/cc65/issues/1095
+  - char bit-field support: https://github.com/cc65/cc65/issues/1047
+  - long bit-field support: https://github.com/cc65/cc65/issues/1131
+*/
+
+#include <stdio.h>
+
+static unsigned char failures = 0;
+
+static struct plain_ints {
+    int x : 4;
+    int y : 10;
+} pi = {15, 700};
+
+static void test_plain_int_bitfields (void)
+{
+    if (pi.x != 15) {
+        printf ("Got pi.x = %ld, expected 15.\n", (long)pi.x);
+        failures++;
+    }
+    if (pi.y != 700) {
+        printf ("Got pi.y = %ld, expected 700.\n", (long)pi.y);
+        failures++;
+    }
+
+    pi.x = 3;
+    pi.y = 1023;
+
+    if (pi.x != 3) {
+        printf ("Got pi.x = %ld, expected 3.\n", (long)pi.x);
+        failures++;
+    }
+    if (pi.y != 1023) {
+        printf ("Got pi.y = %ld, expected 1023.\n", (long)pi.y);
+        failures++;
+    }
+}
+
+static struct plain_shorts {
+    short x : 4;
+    short y : 10;
+} ps = {15, 700};
+
+static void test_plain_short_bitfields (void)
+{
+    if (ps.x != 15) {
+        printf ("Got ps.x = %ld, expected 15.\n", (long)ps.x);
+        failures++;
+    }
+    if (ps.y != 700) {
+        printf ("Got ps.y = %ld, expected 700.\n", (long)ps.y);
+        failures++;
+    }
+
+    ps.x = 3;
+    ps.y = 1023;
+
+    if (ps.x != 3) {
+        printf ("Got ps.x = %ld, expected 3.\n", (long)ps.x);
+        failures++;
+    }
+    if (ps.y != 1023) {
+        printf ("Got ps.y = %ld, expected 1023.\n", (long)ps.y);
+        failures++;
+    }
+}
+
+static struct plain_chars {
+    char x : 4;
+} pc = {15};
+
+static void test_plain_char_bitfields (void)
+{
+    if (pc.x != 15) {
+        printf ("Got pc.x = %ld, expected 15.\n", (long)pc.x);
+        failures++;
+    }
+
+    pc.x = 3;
+
+    if (pc.x != 3) {
+        printf ("Got pc.x = %ld, expected 3.\n", (long)pc.x);
+        failures++;
+    }
+}
+
+static struct plain_longs {
+    long x : 4;
+    long y : 10;
+    long z : 18;
+} pl = {15, 700, 200000};
+
+static void test_plain_long_bitfields (void)
+{
+    if (pl.x != 15) {
+        if (pl.x < 0) {
+            printf ("Got pl.x = %ld, expected 15.\n", (long)pl.x);
+        } else {
+            printf ("Got pl.x = %lu, expected 15.\n", (unsigned long)pl.x);
+        }
+        failures++;
+    }
+    if (pl.y != 700) {
+        if (pl.y < 0) {
+            printf ("Got pl.y = %ld, expected 700.\n", (long)pl.y);
+        } else {
+            printf ("Got pl.y = %lu, expected 700.\n", (unsigned long)pl.y);
+        }
+        failures++;
+    }
+    if (pl.z != 200000) {
+        if (pl.z < 0) {
+            printf ("Got pl.z = %ld, expected 200000.\n", (long)pl.z);
+        } else {
+            printf ("Got pl.z = %lu, expected 200000.\n", (unsigned long)pl.z);
+        }
+        failures++;
+    }
+
+    pl.x = 3;
+    pl.y = 1023;
+    pl.z = 262143;
+
+    if (pl.x != 3) {
+        if (pl.x < 0) {
+            printf ("Got pl.x = %ld, expected 3.\n", (long)pl.x);
+        } else {
+            printf ("Got pl.x = %lu, expected 3.\n", (unsigned long)pl.x);
+        }
+        failures++;
+    }
+    if (pl.y != 1023) {
+        if (pl.y < 0) {
+            printf ("Got pl.y = %ld, expected 1023.\n", (long)pl.y);
+        } else {
+            printf ("Got pl.y = %lu, expected 1023.\n", (unsigned long)pl.y);
+        }
+        failures++;
+    }
+    if (pl.z != 262143) {
+        if (pl.z < 0) {
+            printf ("Got pl.z = %ld, expected 262143.\n", (long)pl.z);
+        } else {
+            printf ("Got pl.z = %lu, expected 262143.\n", (unsigned long)pl.z);
+        }
+        failures++;
+    }
+}
+
+int main (void)
+{
+    test_plain_int_bitfields ();
+    test_plain_short_bitfields ();
+    test_plain_char_bitfields ();
+    test_plain_long_bitfields ();
+    printf ("failures: %u\n", failures);
+    return failures;
+}