X-Git-Url: https://pd.if.org/git/?p=lice;a=blobdiff_plain;f=tests%2Fsizeof.c;fp=tests%2Fsizeof.c;h=c7a060c20b461f7ab7193e2d033052d71977b0aa;hp=0000000000000000000000000000000000000000;hb=b6a50b8be3d6a2e2d6624983f6bf1bf0c9f6802a;hpb=946bdbe1d5dd89ab671391fbe429a1c2c48ecaa7

diff --git a/tests/sizeof.c b/tests/sizeof.c
new file mode 100644
index 0000000..c7a060c
--- /dev/null
+++ b/tests/sizeof.c
@@ -0,0 +1,57 @@
+// sizeof operator
+
+int main(void) {
+    expecti(sizeof(char),   1);
+    expecti(sizeof(short),  2);
+    expecti(sizeof(int),    4);
+    expecti(sizeof(long),   8);
+    expecti(sizeof(char*),  8);
+    expecti(sizeof(short*), 8);
+    expecti(sizeof(int*),   8);
+    expecti(sizeof(long*),  8);
+
+    expecti(sizeof(unsigned char),  1);
+    expecti(sizeof(unsigned short), 2);
+    expecti(sizeof(unsigned int),   4);
+    expecti(sizeof(unsigned long),  8);
+
+    expecti(sizeof 1,    4);
+    expecti(sizeof 1L,   8);
+    expecti(sizeof 1.0f, 4);
+    expecti(sizeof 1.0,  8);
+    expecti(sizeof 'a',  4);
+    expecti(sizeof('b'), 4);
+
+    expecti(sizeof(char[1]),      1);
+    expecti(sizeof(char[2]),      2);
+    expecti(sizeof(char[3]),      3);
+    expecti(sizeof(char[1][10]),  10);
+    expecti(sizeof(char[10][1]),  10);
+    expecti(sizeof(char[10][10]), 100);
+    expecti(sizeof(int[4][2]),    32);
+    expecti(sizeof(int[2][4]),    32);
+
+    char  a[] = { 1, 2, 3 };
+    char  b[] = "abc";
+    char *c[5];
+    char *(*d)[3];
+
+    expecti(sizeof(a),    3);
+    expecti(sizeof(b),    4);
+    expecti(sizeof(c),    40);
+    expecti(sizeof(d),    8);
+    expecti(sizeof(*d),   24);
+    expecti(sizeof(**d),  8);
+    expecti(sizeof(***d), 1);
+
+    char _not_int_;
+    expecti(sizeof((int)_not_int_), 4); // cast makes it sizeof(int)
+
+    // the more complicated syntax cases
+    expecti(sizeof(b[0]),     1);
+    expecti(sizeof((b[0])),   1);
+    expecti(sizeof((b)[0]),   1);
+    expecti(sizeof(((b)[0])), 1);
+
+    return 0;
+}