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Fixed the grammar a bit.
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Alexis Wilke
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If you dontdon't want to use the Boost solution you can create simple macromacros that will do something similar thing:

#define MACRO_GET_1(str, i) \ (sizeof(str) > (i) ? str[(i)] : 0) #define MACRO_GET_4(str, i) \ MACRO_GET_1(str, i+0), \ MACRO_GET_1(str, i+1), \ MACRO_GET_1(str, i+2), \ MACRO_GET_1(str, i+3) #define MACRO_GET_16(str, i) \ MACRO_GET_4(str, i+0), \ MACRO_GET_4(str, i+4), \ MACRO_GET_4(str, i+8), \ MACRO_GET_4(str, i+12) #define MACRO_GET_64(str, i) \ MACRO_GET_16(str, i+0), \ MACRO_GET_16(str, i+16), \ MACRO_GET_16(str, i+32), \ MACRO_GET_16(str, i+48) #define MACRO_GET_STR(str) MACRO_GET_64(str, 0), 0 //guard for longer strings using seq = sequence<MACRO_GET_STR("Hello world!")>; 

The only problem is the fixed size of 64 chars (plus additional zero). But it can easily be easy changed depending on your needs.

If you dont want use Boost solution you can create simple macro that will do similar thing:

#define MACRO_GET_1(str, i) \ (sizeof(str) > (i) ? str[(i)] : 0) #define MACRO_GET_4(str, i) \ MACRO_GET_1(str, i+0), \ MACRO_GET_1(str, i+1), \ MACRO_GET_1(str, i+2), \ MACRO_GET_1(str, i+3) #define MACRO_GET_16(str, i) \ MACRO_GET_4(str, i+0), \ MACRO_GET_4(str, i+4), \ MACRO_GET_4(str, i+8), \ MACRO_GET_4(str, i+12) #define MACRO_GET_64(str, i) \ MACRO_GET_16(str, i+0), \ MACRO_GET_16(str, i+16), \ MACRO_GET_16(str, i+32), \ MACRO_GET_16(str, i+48) #define MACRO_GET_STR(str) MACRO_GET_64(str, 0), 0 //guard for longer strings using seq = sequence<MACRO_GET_STR("Hello world!")>; 

only problem is fixed size of 64 chars (plus additional zero). But it can be easy changed depending on your needs.

If you don't want to use the Boost solution you can create simple macros that will do something similar:

#define MACRO_GET_1(str, i) \ (sizeof(str) > (i) ? str[(i)] : 0) #define MACRO_GET_4(str, i) \ MACRO_GET_1(str, i+0), \ MACRO_GET_1(str, i+1), \ MACRO_GET_1(str, i+2), \ MACRO_GET_1(str, i+3) #define MACRO_GET_16(str, i) \ MACRO_GET_4(str, i+0), \ MACRO_GET_4(str, i+4), \ MACRO_GET_4(str, i+8), \ MACRO_GET_4(str, i+12) #define MACRO_GET_64(str, i) \ MACRO_GET_16(str, i+0), \ MACRO_GET_16(str, i+16), \ MACRO_GET_16(str, i+32), \ MACRO_GET_16(str, i+48) #define MACRO_GET_STR(str) MACRO_GET_64(str, 0), 0 //guard for longer strings using seq = sequence<MACRO_GET_STR("Hello world!")>; 

The only problem is the fixed size of 64 chars (plus additional zero). But it can easily be changed depending on your needs.

replaced http://stackoverflow.com/ with https://stackoverflow.com/
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If you dont want use Boost solutionBoost solution you can create simple macro that will do similar thing:

#define MACRO_GET_1(str, i) \ (sizeof(str) > (i) ? str[(i)] : 0) #define MACRO_GET_4(str, i) \ MACRO_GET_1(str, i+0), \ MACRO_GET_1(str, i+1), \ MACRO_GET_1(str, i+2), \ MACRO_GET_1(str, i+3) #define MACRO_GET_16(str, i) \ MACRO_GET_4(str, i+0), \ MACRO_GET_4(str, i+4), \ MACRO_GET_4(str, i+8), \ MACRO_GET_4(str, i+12) #define MACRO_GET_64(str, i) \ MACRO_GET_16(str, i+0), \ MACRO_GET_16(str, i+16), \ MACRO_GET_16(str, i+32), \ MACRO_GET_16(str, i+48) #define MACRO_GET_STR(str) MACRO_GET_64(str, 0), 0 //guard for longer strings using seq = sequence<MACRO_GET_STR("Hello world!")>; 

only problem is fixed size of 64 chars (plus additional zero). But it can be easy changed depending on your needs.

If you dont want use Boost solution you can create simple macro that will do similar thing:

#define MACRO_GET_1(str, i) \ (sizeof(str) > (i) ? str[(i)] : 0) #define MACRO_GET_4(str, i) \ MACRO_GET_1(str, i+0), \ MACRO_GET_1(str, i+1), \ MACRO_GET_1(str, i+2), \ MACRO_GET_1(str, i+3) #define MACRO_GET_16(str, i) \ MACRO_GET_4(str, i+0), \ MACRO_GET_4(str, i+4), \ MACRO_GET_4(str, i+8), \ MACRO_GET_4(str, i+12) #define MACRO_GET_64(str, i) \ MACRO_GET_16(str, i+0), \ MACRO_GET_16(str, i+16), \ MACRO_GET_16(str, i+32), \ MACRO_GET_16(str, i+48) #define MACRO_GET_STR(str) MACRO_GET_64(str, 0), 0 //guard for longer strings using seq = sequence<MACRO_GET_STR("Hello world!")>; 

only problem is fixed size of 64 chars (plus additional zero). But it can be easy changed depending on your needs.

If you dont want use Boost solution you can create simple macro that will do similar thing:

#define MACRO_GET_1(str, i) \ (sizeof(str) > (i) ? str[(i)] : 0) #define MACRO_GET_4(str, i) \ MACRO_GET_1(str, i+0), \ MACRO_GET_1(str, i+1), \ MACRO_GET_1(str, i+2), \ MACRO_GET_1(str, i+3) #define MACRO_GET_16(str, i) \ MACRO_GET_4(str, i+0), \ MACRO_GET_4(str, i+4), \ MACRO_GET_4(str, i+8), \ MACRO_GET_4(str, i+12) #define MACRO_GET_64(str, i) \ MACRO_GET_16(str, i+0), \ MACRO_GET_16(str, i+16), \ MACRO_GET_16(str, i+32), \ MACRO_GET_16(str, i+48) #define MACRO_GET_STR(str) MACRO_GET_64(str, 0), 0 //guard for longer strings using seq = sequence<MACRO_GET_STR("Hello world!")>; 

only problem is fixed size of 64 chars (plus additional zero). But it can be easy changed depending on your needs.

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Yankes
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If you dont want use Boost solution you can create simple macro that will do similar thing:

#define MACRO_GET_1(str, i) \ (sizeof(str) > (i) ? str[(i)] : 0) #define MACRO_GET_4(str, i) \ MACRO_GET_1(str, i+0), \ MACRO_GET_1(str, i+1), \ MACRO_GET_1(str, i+2), \ MACRO_GET_1(str, i+3) #define MACRO_GET_16(str, i) \ MACRO_GET_4(str, i+0), \ MACRO_GET_4(str, i+4), \ MACRO_GET_4(str, i+8), \ MACRO_GET_4(str, i+12) #define MACRO_GET_64(str, i) \ MACRO_GET_16(str, i+0), \ MACRO_GET_16(str, i+16), \ MACRO_GET_16(str, i+32), \ MACRO_GET_16(str, i+48) #define MACRO_GET_STR(str) MACRO_GET_64(str, 0), 0 //guard for longer strings using seq = sequence<MACRO_GET_STR("Hello world!")>; 

only problem is fixed size of 64 chars (plus additional zero). But it can be easy changed depending on your needs.