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monorepo

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This commit is contained in:
Jose
2025-10-10 02:17:07 +02:00
commit ee9f86004b
48 changed files with 2161 additions and 0 deletions
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66
P2/smt4497-P2/Crono.cpp Normal file
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#include "Crono.h"
// agrupación de clases, funciones y variables globales
namespace ss {
Crono::Crono() // constructor
{
// Paso 1: Obtiene la frecuencia del timer del PC en tics/segundo usando QueryPerformanceFrequency
if (_ticsPorSegundoDelTimerDelPC < 0) {
// No se ha calculado la frecuencia aún. Se calcula ahora
LARGE_INTEGER frecuencia;
char _cadDbg[TAM_CADENA_DEBUG]; // snprintf almacena en una matriz intermedia y al pasar
// _cadDbg es un puntero a _cadDbg[0]
if (QueryPerformanceFrequency(&frecuencia)) {
_ticsPorSegundoDelTimerDelPC = frecuencia.QuadPart;
snprintf(_cadDbg, sizeof(_cadDbg), "La frecuencia del contador del PC es %d Hz\n",
_ticsPorSegundoDelTimerDelPC);
OutputDebugStringA(_cadDbg);
}
else {
OutputDebugStringA("Error al ejecutar QueryPerformanceFrequency en " __FUNCTION__);
}
}
}
Crono::~Crono() // destructor
{
}
bool Crono::Inicio()
{
bool res = false;
if (_ticsPorSegundoDelTimerDelPC > 0) {
// Paso 2: guarda el valor actual del timer del PC en tics usando QueryPerformanceCounter
LARGE_INTEGER ticks;
if (QueryPerformanceCounter(&ticks)) {
_ticsAntes = ticks.QuadPart;
res = true;
}
else {
OutputDebugStringA("Error al ejecutar QueryPerformanceCounter en " __FUNCTION__);
}
}
return res;
}
double Crono::Lee()
{
double segundos = -1.0;
// Paso 3: Obtiene el valor actual del timer del PC en tics usando QueryPerformanceCounter
LARGE_INTEGER ticks;
if (QueryPerformanceCounter(&ticks)) {
int64_t ahora = ticks.QuadPart;
segundos = (double)(ahora - _ticsAntes) / _ticsPorSegundoDelTimerDelPC;
}
else {
printf("Error al ejecutar QueryPerformanceCounter en " __FUNCTION__);
}
return segundos;
}
}

21
P2/smt4497-P2/Crono.h Normal file
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#pragma once
#include <stdint.h>
#include <stdio.h>
#include <stdarg.h>
#include <Windows.h>
namespace ss {
class Crono {
private: // por defecto todo es private
int64_t _ticsAntes = 0;
int64_t _ticsPorSegundoDelTimerDelPC = -1;
static const int TAM_CADENA_DEBUG = 64;
public:
Crono();
~Crono();
bool Inicio();
double Lee();
};
}

11
P2/smt4497-P2/smt4497-P2-classes.cpp Normal file
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#include "smt4497-P2.h"
int p2_classes()
{
ss::Crono crono;
crono.Inicio();
Sleep(10000);
double segs = crono.Lee();
printf("Segundos: %f\n", segs);
return 0;
}

34
P2/smt4497-P2/smt4497-P2-struct-union.cpp Normal file
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#include "smt4497-P2.h"
int p2_struct_union()
{
setlocale(LC_ALL, "spanish");
printf("\nEstructuras | PR<50>CTICA 2 | SS\n");
printf("---------------------------------\n");
struct {
int entero;
char car;
} vEstructura = { 256, 1 }; // Define + inicializa la estructura
union {
int entero;
unsigned char car[4];
} vUnion = { 256 }; // Define + inicializa la uni<6E>n
vUnion.entero = 0x89abcdef; // byte 0: 0xef, byte 1: 0xcd, byte 2: 0xab, byte 3: 0x89
printf("vUnion.entero vale 0x%x\n", vUnion.entero);
printf("El valor del byte 2 de vUnion.entero es: 0x%x\n",
// (vUnion.entero & 0x00ff0000) >> 16); tambi<62>n es v<>lido hacer primero la m<>scara y luego shift
(vUnion.entero >> (8 * 2) & 0xff));
printf("El valor del byte 2 de vUnion.entero es: 0x%x\n",
vUnion.car[2]);
// printf("Estructura: %d Tam: %d\n", vEstructura.entero, sizeof(vEstructura));
// printf("Union: %d Tam: %d\n", vUnion.entero, sizeof(vUnion));
return 0;
}

25
P2/smt4497-P2/smt4497-P2-typedef.cpp Normal file
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#include "smt4497-P2.h"
typedef struct {
int entero;
char car;
} tEstructura_t;
tEstructura_t var1 = { 100, 1 };
tEstructura_t var2 = { 100, 1 };
int p2_typedef()
{
printf("\nEstructuras Personalizadas | PR<50>CTICA 2 | SS\n");
printf("------------------------------------------------\n");
tEstructura_t var3 = { 100, 1 };
int comparacion = memcmp(&var1, &var2, sizeof(tEstructura_t));
printf("resultado de comparar var1 y var2: %d\n", comparacion);
comparacion = memcmp(&var1, &var3, sizeof(tEstructura_t));
printf("resultado de comparar var1 y var3: %d\n", comparacion);
return 0;
}

12
P2/smt4497-P2/smt4497-P2.cpp Normal file
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#include "smt4497-P2.h"
int main(int argc, char* argv[], char* envp[])
{
setlocale(LC_ALL, "Spanish");
// p2_struct_union();
// p2_typedef();
p2_classes();
return 0;
}

11
P2/smt4497-P2/smt4497-P2.h Normal file
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#pragma once
#include <stdio.h>
#include <locale.h>
#include <Windows.h>
#include "Crono.h"
int p2_struct_union();
int p2_typedef();
int p2_crono();
int p2_classes();

143
P2/smt4497-P2/smt4497-P2.vcxproj Normal file
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<ProjectConfiguration Include="Release|x64">
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<Keyword>Win32Proj</Keyword>
<ProjectGuid>{f2876c30-95c1-42d2-b434-6ce7ca561024}</ProjectGuid>
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<Link>
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<ClCompile Include="smt4497-P2-classes.cpp" />
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</ItemGroup>
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<ClInclude Include="Crono.h" />
<ClInclude Include="smt4497-P2.h" />
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42
P2/smt4497-P2/smt4497-P2.vcxproj.filters Normal file
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4
P2/smt4497-P2/smt4497-P2.vcxproj.user Normal file
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