forked from KolibriOS/kolibrios
16f5992719
New functions for work with system calls KolibriOS are added. Functions for format output are added: printf (), fprintf (), sprintf (), snprintf (), vsnprintf (). For material numbers it is meanwhile supported only format output the (%f), and exponential output a (%e) is not realized yet. Functions for format output correctly work only in GCC because TinyC incorrectly works with the functions containing variable number of arguments. git-svn-id: svn://kolibrios.org@647 a494cfbc-eb01-0410-851d-a64ba20cac60
66 lines
1.3 KiB
C
66 lines
1.3 KiB
C
/*
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* Simple Test program for libtcc
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*
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* libtcc can be useful to use tcc as a "backend" for a code generator.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include "libtcc.h"
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/* this function is called by the generated code */
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int add(int a, int b)
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{
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return a + b;
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}
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char my_program[] =
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"int fib(int n)\n"
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"{\n"
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" if (n <= 2)\n"
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" return 1;\n"
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" else\n"
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" return fib(n-1) + fib(n-2);\n"
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"}\n"
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"\n"
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"int foo(int n)\n"
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"{\n"
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" printf(\"Hello World!\\n\");\n"
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" printf(\"fib(%d) = %d\\n\", n, fib(n));\n"
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" printf(\"add(%d, %d) = %d\\n\", n, 2 * n, add(n, 2 * n));\n"
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" return 0;\n"
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"}\n";
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int main(int argc, char **argv)
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{
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TCCState *s;
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int (*func)(int);
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unsigned long val;
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s = tcc_new();
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if (!s) {
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fprintf(stderr, "Could not create tcc state\n");
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exit(1);
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}
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/* MUST BE CALLED before any compilation or file loading */
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tcc_set_output_type(s, TCC_OUTPUT_MEMORY);
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tcc_compile_string(s, my_program);
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/* as a test, we add a symbol that the compiled program can be
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linked with. You can have a similar result by opening a dll
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with tcc_add_dll(() and using its symbols directly. */
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tcc_add_symbol(s, "add", (unsigned long)&add);
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tcc_relocate(s);
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tcc_get_symbol(s, &val, "foo");
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func = (void *)val;
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func(32);
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tcc_delete(s);
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return 0;
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}
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