Revisions to Formatted print without the need to specify type matching specifiers using _Generic

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edited May 23, 2017 at 12:40

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Ref on _generic() extensibility _generic() extensibility

Ref on _generic() extensibility

Notice removed Draw attention by chux

occurred Mar 25, 2016 at 3:28

Bounty Ended with Edward's answer chosen by chux

occurred Mar 25, 2016 at 3:28

deleted 14 characters in body; edited tags

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edited Mar 23, 2016 at 15:46

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#include "GPrint.h"
#include <limits.h>

int main(void) {
  double q = 1000000.0 / 7;
  int i = 42;
  GPrintf("42 --> base 10:", GP(i), 
      GP_setbase(2), " 2:", GP(i), 
      GP_setbase(36), " 36:", GP(i), GP_eol);

  GPrintf("million/7 = ", GP(q), GP_eol);
  GPrintf("million/7 = ", GP_setprecision(3), GP(q), GP_eol);
  GPrintf("million/7 = ", GP_fixed, GP(q), GP_eol);
  GPrintf("million/7 = ", GP_fixed, GP_setprecision(3), GP(q), GP_eol);

  for (int y = 1; y < 9; y++) {
    int x = y * y;
    GPrintf(GP_setw(2), GP(y), ",", GP(x), ":", NULL);
    GPrintf(GP_repeat(x), GP((char)'*'), GP_eol);
  }
  GPrintf(GP_setw(5), GP(" "), ":", NULL);
  for (int x = 0; x < 70; x += 5)
    GPrintf("----+", NULL);
  GPrintf(GP_eol);

  return 0;
}
`main.c`

#include "GPrint.h"
#include <limits.h>

int main(void) {
  double q = 1000000.0 / 7;
  int i = 42;
  GPrintf("42 --> base 10:", GP(i), 
      GP_setbase(2), " 2:", GP(i), 
      GP_setbase(36), " 36:", GP(i), GP_eol);

  GPrintf("million/7 = ", GP(q), GP_eol);
  GPrintf("million/7 = ", GP_setprecision(3), GP(q), GP_eol);
  GPrintf("million/7 = ", GP_fixed, GP(q), GP_eol);
  GPrintf("million/7 = ", GP_fixed, GP_setprecision(3), GP(q), GP_eol);

  for (int y = 1; y < 9; y++) {
    int x = y * y;
    GPrintf(GP_setw(2), GP(y), ",", GP(x), ":", NULL);
    GPrintf(GP_repeat(x), GP((char)'*'), GP_eol);
  }
  GPrintf(GP_setw(5), GP(" "), ":", NULL);
  for (int x = 0; x < 70; x += 5)
    GPrintf("----+", NULL);
  GPrintf(GP_eol);

  return 0;
}
`main.c`

#include "GPrint.h"
#include <limits.h>

int main(void) {
  double q = 1000000.0 / 7;
  int i = 42;
  GPrintf("42 --> base 10:", GP(i), 
      GP_setbase(2), " 2:", GP(i), 
      GP_setbase(36), " 36:", GP(i), GP_eol);

  GPrintf("million/7 = ", GP(q), GP_eol);
  GPrintf("million/7 = ", GP_setprecision(3), GP(q), GP_eol);
  GPrintf("million/7 = ", GP_fixed, GP(q), GP_eol);
  GPrintf("million/7 = ", GP_fixed, GP_setprecision(3), GP(q), GP_eol);

  for (int y = 1; y < 9; y++) {
    int x = y * y;
    GPrintf(GP_setw(2), GP(y), ",", GP(x), ":", NULL);
    GPrintf(GP_repeat(x), GP((char)'*'), GP_eol);
  }
  GPrintf(GP_setw(5), GP(" "), ":", NULL);
  for (int x = 0; x < 70; x += 5)
    GPrintf("----+", NULL);
  GPrintf(GP_eol);

  return 0;
}