From 65264ba6d1f7e7402009f33b60e3263bf1f02498 Mon Sep 17 00:00:00 2001
From: Nicholas Noll <nbnoll@eml.cc>
Date: Fri, 17 Apr 2020 18:04:04 -0700
Subject: init: prototype of code skeleton

---
 include/u.h | 117 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 include/u.h

(limited to 'include/u.h')

diff --git a/include/u.h b/include/u.h
new file mode 100644
index 0000000..349a236
--- /dev/null
+++ b/include/u.h
@@ -0,0 +1,117 @@
+#pragma once
+
+// ------------------------------------------------------------------------
+// Standard library
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <float.h>
+#include <limits.h>
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <ctype.h>
+#include <stdio.h>
+
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+
+// ------------------------------------------------------------------------
+// Modern type aliases
+
+typedef char          byte;
+typedef unsigned char ubyte;
+typedef signed char   sbyte;
+
+typedef long long           vlong;
+typedef unsigned long long  uvlong;
+
+typedef unsigned int uint;
+typedef uint8_t  uint8;
+typedef uint16_t uint16;
+typedef uint32_t uint32;
+typedef uint64_t uint64;
+
+typedef int8_t  int8;
+typedef int16_t int16;
+typedef int32_t int32;
+typedef int64_t int64;
+
+typedef float  float32;
+typedef double float64;
+
+typedef uintptr_t uintptr;
+typedef intptr_t  intptr;
+
+typedef int error;
+
+#define nil NULL
+
+// ----------------------------------------------------------------------------
+// Dynamic array. 
+
+typedef struct bufHdr
+{
+    vlong len;
+    vlong cap;
+    byte  buf[];
+} bufHdr;
+
+#define _bufHdr(s) ((bufHdr*)((uint8*)(s)-offsetof(bufHdr, buf)))
+#define buflen(s) ((s) ? (_bufHdr(s)->len) : 0)
+#define bufcap(s) ((s) ? (_bufHdr(s)->cap) : 0)
+#define bufend(s) ((s) + buflen(s))
+#define bufsize(s) ((s) ? (buflen(s) * sizeof((s)[0])) : 0)
+
+#define buffree(s) ((s) ? (free(_bufHdr(s)), (s) = nil) : 0)
+#define buffit(s, n) ((n) <= bufcap(s) ? 0 : ((s) = bufgrow((s), (n), sizeof(*(s)))))
+
+#define bufresize(s, n)                                                        \
+    do {                                                                       \
+        (buffit(s, n));                                                        \
+        ((_bufHdr(s)->len) = (n));                                             \
+    } while (0)
+
+#define bufpush(s, ...) (buffit((s), 1 + buflen(s)), (s)[_bufHdr(s)->len++] = (__VA_ARGS__))
+
+#define bufpop(s, i) (_bufpop((s), (i), sizeof(*(s))), (s)[_bufHdr(s)->len])
+
+void* bufgrow(void*, vlong, vlong);
+void _bufpop(void*, int, vlong);
+
+// -----------------------------------------------------------------------------
+// Strings
+
+#include "str.h"
+
+// -----------------------------------------------------------------------------
+// Maps or dictionaries
+
+#include "map.h"
+
+// ------------------------------------------------------------------
+// Global macros
+
+#ifndef RELEASE
+#define Assert(x) assert(x)
+#else
+#define Assert(x)
+#endif
+
+#define arrlen(Array) (sizeof(Array) / sizeof((Array)[0]))
+
+#define MAX(x, y) ((x) >= (y) ? (x) : (y))
+#define MIN(x, y) ((x) < (y) ? (x) : (y))
+
+// -----------------------------------------------------------------------------
+// Error handling functions.
+
+void errorf(const byte* fmt, ...);
+
+#define panicf(...)  (errorf(__VA_ARGS__), assert(0))
-- 
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