jjg@409: /*
jjg@409:  * @test /nodynamiccopyright/
jjg@409:  * @bug 6860973
jjg@409:  * @summary Project Coin: underscores in literals
jjg@409:  *
jjg@409:  * @compile/fail BadUnderscoreLiterals.java
jjg@409:  * @compile/fail/ref=BadUnderscoreLiterals.7.out -XDrawDiagnostics BadUnderscoreLiterals.java
jjg@409:  *
jjg@409:  * @compile/fail -source 6 BadUnderscoreLiterals.java
jjg@757:  * @compile/fail/ref=BadUnderscoreLiterals.6.out -XDrawDiagnostics -source 6 -Xlint:-options BadUnderscoreLiterals.java
jjg@409:  */
jjg@409: 
jjg@409: public class BadUnderscoreLiterals {
jjg@409:     int valid = 1_1;            // valid literal; illegal in -source 6
jjg@409: 
jjg@409:     // test zero
jjg@409:     int z1 = _0;                // valid (but undefined) variable
jjg@409:     int z2 = 0_;                // trailing underscore
jjg@409: 
jjg@409:     // test simple (decimal) integers
jjg@409:     int i1 = _1_2_3;            // valid (but undefined) variable
jjg@409:     int i2 = 1_2_3_;            // trailing underscore
jjg@409: 
jjg@409:     // test binary integers
jjg@409:     int b1 = 0b_0;              // leading underscore after radix
jjg@409:     int b2 = 0b0_;              // trailing underscore
jjg@409: 
jjg@409:     // test hexadecimal integers
jjg@409:     int x1 = 0x_0;              // leading underscore after radix
jjg@409:     int x2 = 0x0_;              // trailing underscore
jjg@409: 
jjg@409:     // test floating point numbers
jjg@409:     float f1 = 0_.1;            // trailing underscore before decimal point
jjg@409:     float f2 = 0._1;            // leading underscore after decimal point
jjg@409:     float f3 = 0.1_;            // trailing underscore
jjg@409:     float f4 = 0.1_e0;          // trailing underscore before exponent
jjg@409:     float f5 = 0e_1;            // leading underscore in exponent
jjg@409:     float f6 = 0e1_;            // trailing underscore in exponent
jjg@409: 
jjg@409:     // hexadecimal floating point
jjg@409:     float xf1 = 0x_0.1p0;       // leading underscore after radix
jjg@409:     float xf2 = 0x0_.1p0;       // trailing underscore before decimal point
jjg@409:     float xf3 = 0x0._1p0;       // leading underscore after decimal point
jjg@409:     float xf4 = 0x0.1_p0;       // trailing underscore before exponent
jjg@409:     float xf5 = 0x0p_1;         // leading underscore after exponent
jjg@409:     float xf6 = 0x0p1_;         // trailing underscore
jjg@409: }
jjg@409: