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-rw-r--r--include/bits/types.h95
-rw-r--r--include/inttypes.h45
-rw-r--r--include/stdlib.h41
-rw-r--r--src/inttypes/div.c38
-rw-r--r--src/stdlib/div.c68
5 files changed, 284 insertions, 3 deletions
diff --git a/include/bits/types.h b/include/bits/types.h
index 41967f2..5d99e4f 100644
--- a/include/bits/types.h
+++ b/include/bits/types.h
@@ -25,6 +25,13 @@
#include <bits/intconf.h>
+/* Ensure that dependencies for type are defined. */
+#if defined(__NEED_imaxdiv_t) && !defined(__NEED_intmax_t)
+# define __NEED_intmax_t
+#endif
+
+
+
/**
* Returns the maximum value of an unsigned integer type,
* in that type.
@@ -267,3 +274,91 @@ typedef int sig_atomic_t;
# define __SIG_ATOMIC_BIT __INT_BIT
#endif
+
+/**
+ * A structure than holds both the quotient and
+ * the remainer in an integer division, of
+ * `int` type.
+ */
+#if defined(__NEED_div_t) && !defined(__DEFINED_div_t)
+# define __DEFINED_div_t
+typedef struct {
+ /**
+ * Quotient.
+ */
+ int quot;
+
+ /**
+ * Remainder.
+ */
+ int rem;
+
+} div_t;
+#endif
+
+
+/**
+ * A structure than holds both the quotient and
+ * the remainer in an integer division, of
+ * `long int` type.
+ */
+#if defined(__NEED_ldiv_t) && !defined(__DEFINED_ldiv_t)
+# define __DEFINED_ldiv_t
+typedef struct {
+ /**
+ * Quotient.
+ */
+ long int quot;
+
+ /**
+ * Remainder.
+ */
+ long int rem;
+
+} ldiv_t;
+#endif
+
+
+/**
+ * A structure than holds both the quotient and
+ * the remainer in an integer division, of
+ * `long long int` type.
+ */
+#if defined(__NEED_lldiv_t) && !defined(__DEFINED_lldiv_t)
+# define __DEFINED_lldiv_t
+typedef struct {
+ /**
+ * Quotient.
+ */
+ long long int quot;
+
+ /**
+ * Remainder.
+ */
+ long long int rem;
+
+} lldiv_t;
+#endif
+
+
+/**
+ * A structure than holds both the quotient and
+ * the remainer in an integer division, of
+ * `intmax_t` type.
+ */
+#if defined(__NEED_imaxdiv_t) && !defined(__DEFINED_imaxdiv_t)
+# define __DEFINED_imaxdiv_t
+typedef struct {
+ /**
+ * Quotient.
+ */
+ intmax_t quot;
+
+ /**
+ * Remainder.
+ */
+ intmax_t rem;
+
+} imaxdiv_t;
+#endif
+
diff --git a/include/inttypes.h b/include/inttypes.h
new file mode 100644
index 0000000..dac5e27
--- /dev/null
+++ b/include/inttypes.h
@@ -0,0 +1,45 @@
+/**
+ * slibc — Yet another C library
+ * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _STDLIB_H
+#define _STDLIB_H
+#include <slibc/version.h>
+#include <slibc/features.h>
+
+
+
+#define __NEED_intmax_t
+#define __NEED_imaxdiv_t
+
+#include <bits/types.h>
+
+
+/**
+ * Perform an integer division and return
+ * both the quotient and the remainder.
+ *
+ * @param numerator The numerator.
+ * @param denominator The denominator.
+ * @return The quotient in `.quot`, and
+ * the remainder in `.rem`.
+ */
+imaxdiv_t imaxdiv(intmax_t, intmax_t);
+
+
+
+#endif
+
diff --git a/include/stdlib.h b/include/stdlib.h
index f24fbf3..fd78d27 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -27,9 +27,9 @@
#define __NEED_size_t
#define __NEED_wchar_t
-#define __NEED_div_t /* TODO not defined */
-#define __NEED_ldiv_t /* TODO not defined */
-#define __NEED_lldiv_t /* TODO not defined */
+#define __NEED_div_t
+#define __NEED_ldiv_t
+#define __NEED_lldiv_t
#include <bits/types.h>
@@ -56,5 +56,40 @@
+/**
+ * Perform an integer division and return
+ * both the quotient and the remainder.
+ *
+ * @param numerator The numerator.
+ * @param denominator The denominator.
+ * @return The quotient in `.quot`, and
+ * the remainder in `.rem`.
+ */
+div_t div(int, int);
+
+/**
+ * Perform an integer division and return
+ * both the quotient and the remainder.
+ *
+ * @param numerator The numerator.
+ * @param denominator The denominator.
+ * @return The quotient in `.quot`, and
+ * the remainder in `.rem`.
+ */
+ldiv_t ldiv(long, long);
+
+/**
+ * Perform an integer division and return
+ * both the quotient and the remainder.
+ *
+ * @param numerator The numerator.
+ * @param denominator The denominator.
+ * @return The quotient in `.quot`, and
+ * the remainder in `.rem`.
+ */
+lldiv_t lldiv(long long, long long);
+
+
+
#endif
diff --git a/src/inttypes/div.c b/src/inttypes/div.c
new file mode 100644
index 0000000..e0330ec
--- /dev/null
+++ b/src/inttypes/div.c
@@ -0,0 +1,38 @@
+/**
+ * slibc — Yet another C library
+ * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <inttypes.h>
+
+
+# pragma GCC diagnostic ignored "-Waggregate-return"
+
+
+
+/**
+ * Perform an integer division and return
+ * both the quotient and the remainder.
+ *
+ * @param numerator The numerator.
+ * @param denominator The denominator.
+ * @return The quotient in `.quot`, and
+ * the remainder in `.rem`.
+ */
+imaxdiv_t imaxdiv(intmax_t numerator, intmax_t denominator)
+{
+ return (imaxdiv_t){ numerator / denominator, numerator % denominator };
+}
+
diff --git a/src/stdlib/div.c b/src/stdlib/div.c
new file mode 100644
index 0000000..fb32d53
--- /dev/null
+++ b/src/stdlib/div.c
@@ -0,0 +1,68 @@
+/**
+ * slibc — Yet another C library
+ * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <stdlib.h>
+
+
+# pragma GCC diagnostic ignored "-Waggregate-return"
+
+
+
+/**
+ * Perform an integer division and return
+ * both the quotient and the remainder.
+ *
+ * @param numerator The numerator.
+ * @param denominator The denominator.
+ * @return The quotient in `.quot`, and
+ * the remainder in `.rem`.
+ */
+div_t div(int numerator, int denominator)
+{
+ return (div_t){ numerator / denominator, numerator % denominator };
+}
+
+
+/**
+ * Perform an integer division and return
+ * both the quotient and the remainder.
+ *
+ * @param numerator The numerator.
+ * @param denominator The denominator.
+ * @return The quotient in `.quot`, and
+ * the remainder in `.rem`.
+ */
+ldiv_t ldiv(long numerator, long denominator)
+{
+ return (ldiv_t){ numerator / denominator, numerator % denominator };
+}
+
+
+/**
+ * Perform an integer division and return
+ * both the quotient and the remainder.
+ *
+ * @param numerator The numerator.
+ * @param denominator The denominator.
+ * @return The quotient in `.quot`, and
+ * the remainder in `.rem`.
+ */
+lldiv_t lldiv(long long numerator, long long denominator)
+{
+ return (lldiv_t){ numerator / denominator, numerator % denominator };
+}
+
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