REGISTER_DOUBLE_CONSTANT 3581 ext/standard/basic_functions.c #define REGISTER_MATH_CONSTANT(x)  REGISTER_DOUBLE_CONSTANT(#x, x, CONST_CS | CONST_PERSISTENT)
REGISTER_DOUBLE_CONSTANT 3599 ext/standard/basic_functions.c 	REGISTER_DOUBLE_CONSTANT("INF", php_get_inf(), CONST_CS | CONST_PERSISTENT);
REGISTER_DOUBLE_CONSTANT 3600 ext/standard/basic_functions.c 	REGISTER_DOUBLE_CONSTANT("NAN", php_get_nan(), CONST_CS | CONST_PERSISTENT);