============================================
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If statements
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============================================
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|
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int main() {
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if (a)
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1;
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|
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if (!a) {
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2;
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} else {
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3;
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}
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}
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|
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|
---
|
|
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(translation_unit
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(function_definition
|
|
(type_identifier)
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(function_declarator (identifier) (parameter_list))
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|
(compound_statement
|
|
(if_statement (identifier)
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(expression_statement (number_literal)))
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(if_statement (logical_expression (identifier))
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|
(compound_statement
|
|
(expression_statement (number_literal)))
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(compound_statement
|
|
(expression_statement (number_literal)))))))
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|
|
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============================================
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For loops
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|
============================================
|
|
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|
int main() {
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for (;;)
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1;
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|
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for (int i = 0; i < 5; next(), i++) {
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2;
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|
}
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|
|
|
for (start(); check(); step())
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|
3;
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|
}
|
|
|
|
---
|
|
|
|
(translation_unit
|
|
(function_definition
|
|
(type_identifier)
|
|
(function_declarator (identifier) (parameter_list))
|
|
(compound_statement
|
|
(for_statement
|
|
(expression_statement (number_literal)))
|
|
(for_statement
|
|
(declaration (type_identifier) (init_declarator (identifier) (number_literal)))
|
|
(relational_expression (identifier) (number_literal))
|
|
(call_expression (identifier) (argument_list))
|
|
(math_expression (identifier))
|
|
(compound_statement (expression_statement (number_literal))))
|
|
(for_statement
|
|
(call_expression (identifier) (argument_list))
|
|
(call_expression (identifier) (argument_list))
|
|
(call_expression (identifier) (argument_list))
|
|
(expression_statement (number_literal))))))
|
|
|
|
============================================
|
|
While loops
|
|
============================================
|
|
|
|
int main() {
|
|
while (x)
|
|
printf("hi");
|
|
}
|
|
|
|
---
|
|
|
|
(translation_unit
|
|
(function_definition
|
|
(type_identifier)
|
|
(function_declarator (identifier) (parameter_list))
|
|
(compound_statement
|
|
(while_statement (identifier)
|
|
(expression_statement (call_expression
|
|
(identifier)
|
|
(argument_list (string_literal))))))))
|
|
|
|
============================================
|
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Labeled statements
|
|
============================================
|
|
|
|
void foo(T *t) {
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|
recur:
|
|
t = t->next();
|
|
if (t) goto recur;
|
|
}
|
|
|
|
---
|
|
|
|
(translation_unit
|
|
(function_definition
|
|
(type_identifier)
|
|
(function_declarator (identifier) (parameter_list
|
|
(parameter_declaration (type_identifier) (pointer_declarator (identifier)))))
|
|
(compound_statement
|
|
(labeled_statement (statement_identifier)
|
|
(expression_statement (assignment_expression
|
|
(identifier)
|
|
(call_expression (field_expression (identifier) (field_identifier)) (argument_list)))))
|
|
(if_statement (identifier) (goto_statement (statement_identifier))))))
|
|
|
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============================================
|
|
Comments with asterisks
|
|
============================================
|
|
|
|
/*************************
|
|
* odd number of asterisks
|
|
*************************/
|
|
int a;
|
|
|
|
/**************************
|
|
* even number of asterisks
|
|
**************************/
|
|
int b;
|
|
|
|
---
|
|
|
|
(translation_unit
|
|
(comment)
|
|
(declaration (type_identifier) (identifier))
|
|
(comment)
|
|
(declaration (type_identifier) (identifier)))
|