diff --git a/utils/alt/sizeof_01.c b/utils/alt/sizeof_01.c
deleted file mode 100644
index cb23c574e9b463cbd667208fa829f33912a04c9f..0000000000000000000000000000000000000000
--- a/utils/alt/sizeof_01.c
+++ /dev/null
@@ -1,70 +0,0 @@
-#include <stdio.h>
-
-int main ()
-{
-
- char vetor_01[5], var_01;
- int vetor_02[6], var_02;
- float vetor_03[7], var_03;
- double vetor_04[6], var_04;
- long int var_05;
- long long int var_06;
- short int var_07;
-
- struct cls {
- int a;
- char b[5];
- int c[10];
- };
-
- printf("\n");
- printf("\n");
-
- printf("\n");
- printf(" ================================== \n");
- printf("| TIPO | TAMANHO EM BYTES |\n");
- printf("|==================================|\n");
- printf("| char | %2lu |\n", sizeof(char));
- printf("| int | %2lu |\n", sizeof(int));
- printf("| unsig int | %2lu |\n", sizeof(unsigned int));
- printf("| short int | %2lu |\n", sizeof(short int));
- printf("| long int | %2lu |\n", sizeof(long int));
- printf("| long long int | %2lu |\n", sizeof(long long int));
- printf("| float | %2lu |\n", sizeof(float));
- printf("| double | %2lu |\n", sizeof(double));
- printf("| long double | %2lu |\n", sizeof(long double));
- printf("| struct cls | %2lu |\n", sizeof(struct cls));
- printf(" ==================================|\n");
- printf("| void * | %2lu |\n", sizeof(void *));
- printf("| char * | %2lu |\n", sizeof(char *));
- printf("| int * | %2lu |\n", sizeof(int *));
- printf("| short int * | %2lu |\n", sizeof(short int *));
- printf("| long int * | %2lu |\n", sizeof(long int *));
- printf("| float * | %2lu |\n", sizeof(float *));
- printf("| double * | %2lu |\n", sizeof(double *));
- printf("| long double * | %2lu |\n", sizeof(long double *));
- printf(" ================================== \n");
-
- printf("\n");
- printf("\n");
-
- printf(" ====================================== \n");
- printf("| VARIAVEL | TAMANHO EM BYTES |\n");
- printf("|======================================|\n");
- printf("| char v[5] | %2lu |\n", sizeof vetor_01 );
- printf("| int v[6] | %2lu |\n", sizeof vetor_02 );
- printf("| float v[7] | %2lu |\n", sizeof vetor_03 );
- printf("| double v[6] | %2lu |\n", sizeof(vetor_04));
- printf("| char var | %2lu |\n", sizeof var_01 );
- printf("| int var | %2lu |\n", sizeof var_02 );
- printf("| short int var | %2lu |\n", sizeof(var_07));
- printf("| long int var | %2lu |\n", sizeof(var_05));
- printf("| long long int var | %2lu |\n", sizeof(var_06));
- printf("| float var | %2lu |\n", sizeof var_03 );
- printf("| double var | %2lu |\n", sizeof(var_04));
- printf(" ====================================== \n");
-
- printf("\n");
- printf("\n");
-
-}
diff --git a/utils/alt/sizeof_02.c b/utils/alt/sizeof_02.c
deleted file mode 100644
index cddc32dace570b71fbce2d86bb114c282e1ca904..0000000000000000000000000000000000000000
--- a/utils/alt/sizeof_02.c
+++ /dev/null
@@ -1,34 +0,0 @@
-#include <stdio.h>
-
-#define BITCOUNT(x) (((BX_(x) + (BX_(x) >> 4)) & 0x0F0F0F0F) % 255)
-#define BX_(x) ((x) - \
- (((x) >> 1) & 0x77777777) - \
- (((x) >> 2) & 0x33333333) - \
- (((x) >> 3) & 0x11111111))
-int main ()
-{
-
- char var_01 = 0x80;
- int var_02 = 0x8000;
- long int var_05 = 0x800000;
- long long int var_06 = 0x800000000000;
- short int var_07 = 0x8000;
-
- printf("\n");
- printf("\n");
-
- printf(" ====================================== \n");
- printf("| VARIAVEL | TAMANHO EM BITS |\n");
- printf("|======================================|\n");
- printf("| char var | %2d |\n", BITCOUNT(var_01) );
- printf("| int var | %2d |\n", BITCOUNT(var_02) );
- printf("| short int var | %2lu |\n", sizeof(var_07));
- printf("| long int var | %2lu |\n", sizeof(var_05));
- printf("| long long int var | %2lu |\n", sizeof(var_06));
- printf(" ====================================== \n");
-
- printf("\n");
- printf("\n");
-
-}
-
diff --git a/utils/alt/sizeof_03.c b/utils/alt/sizeof_03.c
deleted file mode 100644
index 7fb08649547bf3264cc88c799e6ffc1539fdf271..0000000000000000000000000000000000000000
--- a/utils/alt/sizeof_03.c
+++ /dev/null
@@ -1,14 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-
-int main ()
-{
-
- printf("%lu %lu %lu %lu %lu\n", sizeof(long long int), sizeof(long int), sizeof(int), sizeof(short int), sizeof(char));
-
- return 0;
-
-}
-
diff --git a/utils/alt/utils-00.c b/utils/alt/utils-00.c
deleted file mode 100644
index e712d67f3658502f8af37ce5a0ab0e1ef2390dd7..0000000000000000000000000000000000000000
--- a/utils/alt/utils-00.c
+++ /dev/null
@@ -1,21 +0,0 @@
-#include <stdio.h>
-#include "utils.h"
-
-/* Retorna tempo em milisegundos
-
- Forma de uso:
-
- double tempo;
- tempo = timestamp();
- <trecho de programa do qual se deseja medir tempo>
- tempo = timestamp() - tempo;
-*/
-
-double timestamp(void)
-{
- struct timeval tp;
- gettimeofday(&tp, NULL);
- // printf("\n*** %7.10lf ms %7.10lf ms\n", tp.tv_sec*1.0e3, tp.tv_usec*1.0e-3);
- return((double)(tp.tv_sec*1.0e3 + tp.tv_usec*1.0e-3));
-}
-
diff --git a/utils/alt/utils-00.h b/utils/alt/utils-00.h
deleted file mode 100644
index 14a0ccece58b66243a5b8eade70a09b17154a8d1..0000000000000000000000000000000000000000
--- a/utils/alt/utils-00.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef __UTILS_H__
-#define __UTILS_H__
-
-#include <stdlib.h>
-#include <sys/time.h>
-
-double timestamp(void);
-
-#endif // __UTILS_H__
-
diff --git a/utils/alt/utils-01.c b/utils/alt/utils-01.c
deleted file mode 100644
index 8acfd1733b81478802044691b8cfbf460fcc1197..0000000000000000000000000000000000000000
--- a/utils/alt/utils-01.c
+++ /dev/null
@@ -1,35 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#include <math.h>
-
-#include "utils.h"
-
-/* Retorna tempo em milisegundos
-
- Forma de uso:
-
- double tempo;
- tempo = timestamp();
- <trecho de programa do qual se deseja medir tempo>
- tempo = timestamp() - tempo;
-*/
-
-double timestamp(void)
-{
- struct timespec tp;
- clock_gettime(CLOCK_MONOTONIC_RAW, &tp);
- return((double)(tp.tv_sec*1.0e3 + tp.tv_nsec*1.0e-6));
-}
-
-string_t markerName(string_t baseName, int n)
-{
- string_t mark = (string_t) malloc( (strlen(baseName)+1) + (log10(n)+1) + 1 );
-
- sprintf(mark, "%s_%u", baseName,n);
-
- // printf("*** %s\n", mark);
-
- return mark;
-
-}
-
diff --git a/utils/alt/utils-01.h b/utils/alt/utils-01.h
deleted file mode 100644
index 5c10efd7d0d334285953832a26b42954bc9c4870..0000000000000000000000000000000000000000
--- a/utils/alt/utils-01.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef __UTILS_H__
-#define __UTILS_H__
-
-#include <stdlib.h>
-#include <time.h>
-
-
-typedef double real_t;
-typedef double rtime_t;
-typedef char * string_t;
-
-double timestamp(void);
-string_t markerName(string_t baseName, int n);
-
-#endif // __UTILS_H__
-
diff --git a/utils/alt/utils-02.c b/utils/alt/utils-02.c
deleted file mode 100644
index 95c887f1631b0e704fc9f46750b6ab4c89b98e5f..0000000000000000000000000000000000000000
--- a/utils/alt/utils-02.c
+++ /dev/null
@@ -1,51 +0,0 @@
-// by W.Zola (2017)
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-
-#include "utils.h"
-
-/* Retorna tempo em nanosegundos
-
- Forma de uso:
-
- chronometer_t *tempo;
- chrono_reset( &tempo);
-
- chrono_start( &tempo);
- <trecho de programa do qual se deseja medir tempo>
- chrono_stop( &tempo);
-
- chrono_reportTime( &tempo, "Tempo: ");
-*/
-
-void chrono_reset( chronometer_t *chrono )
-{
- chrono->xtotal_ns = 0;
- chrono->xn_events = 0;
-}
-
-void chrono_start( chronometer_t *chrono ) {
- clock_gettime(CLOCK_MONOTONIC_RAW, &(chrono->xadd_time1) );
-}
-
-void chrono_stop( chronometer_t *chrono ) {
-
- clock_gettime(CLOCK_MONOTONIC_RAW, &(chrono->xadd_time2) );
-
- long long ns1 = chrono->xadd_time1.tv_sec*1.0e9 + chrono->xadd_time1.tv_nsec;
- long long ns2 = chrono->xadd_time2.tv_sec*1.0e9 + chrono->xadd_time2.tv_nsec;
- chrono->deltaT_ns = ns2 - ns1;
-}
-
-void chrono_reportTime( chronometer_t *chrono, char *prompt ) {
- printf("\n%s (ns): %llu ns\n", prompt, chrono->deltaT_ns);
-}
-
diff --git a/utils/alt/utils-02.h b/utils/alt/utils-02.h
deleted file mode 100644
index 092dfec00c97b9053ec1cf2116aeb8fa79913b72..0000000000000000000000000000000000000000
--- a/utils/alt/utils-02.h
+++ /dev/null
@@ -1,36 +0,0 @@
-#ifndef __UTILS_H__
-#define __UTILS_H__
-
-// by W.Zola (2017)
-
-#include <time.h>
-
-typedef struct {
-
- struct timespec xadd_time1, xadd_time2;
- long long deltaT_ns;
-
-} chronometer_t;
-
-
-/* Retorna intervlo de tempo em nanosegundos
-
- Forma de uso:
-
- chronometer_t *tempo;
- chrono_reset( &tempo);
-
- chrono_start( &tempo);
- <trecho de programa do qual se deseja medir tempo>
- chrono_stop( &tempo);
-
- chrono_reportTime( &tempo, "Tempo: ");
-*/
-
-void chrono_reset( chronometer_t *chrono );
-void chrono_start( chronometer_t *chrono );
-void chrono_stop( chronometer_t *chrono );
-void chrono_reportTime( chronometer_t *chrono, chr *prompt );
-
-#endif // __UTILS_H__
-
diff --git a/utils/utils.c b/utils/utils.c
index 8acfd1733b81478802044691b8cfbf460fcc1197..53aeb74e18751fb641593add1a4540922f5dab26 100644
--- a/utils/utils.c
+++ b/utils/utils.c
@@ -33,3 +33,8 @@ string_t markerName(string_t baseName, int n)
}
+int isPot2(int n)
+{
+ int k;
+ return (k = log2(n)) == log2(n) ;
+}
diff --git a/utils/utils.h b/utils/utils.h
index 5c10efd7d0d334285953832a26b42954bc9c4870..7d10cb04fe727fecf700f0c64768bc241003d4f6 100644
--- a/utils/utils.h
+++ b/utils/utils.h
@@ -11,6 +11,7 @@ typedef char * string_t;
double timestamp(void);
string_t markerName(string_t baseName, int n);
+int isPot2 (int n);
#endif // __UTILS_H__